I'm not sure what the "feminization of Gor" means in this context...if it means there's more female players than male, well- pretty sure that's always been the case, even way back when in HTML Gor- the wimmenz outnumbered the menz by a significant margin.
Trends I've seen in SL Gorean RP (take with a grain of salt, I tend to take extended breaks from playing in SL Gor so your milage may have varried from mine):
Meter fighting, pewpew, manthers, panther girls v. warriors in a never ending back and forth of cap/rape/release. Fast paced, fun, chaotic- the focus was on sex and violence in short, brief bursts that had no significance on characters (most didn't bother with characters) or plots. Very little roleplay and what little roleplay there was bore little to no resemblance to the books' descriptions/characters/actions, etc.
By the Book Gor, or BtB started. People started trying to roleplay more like the stuff in the books, with limited results due to misunderstandings, onlinisms, and lack of most people having actually read the books. Female fighters were banned from BtB sims, with a focus more on building a RP "homestone" setting, with an Ubar in every city, heads of caste, an attempt to make avatars that dressed more like descriptions in the book, with varied success (ramen hair, flexi, bling, we didn't have much to work with back then. LOL) Lots of rules, lots of IC/OOC crossover, people became very strict and bossy and unforgiving and were quick to jump in your IM's if they thought you were "doing it wrong". Roleplay occurred, but was very stiff, stuffy, and often dull, as a focus on families, the all important FC'ing/marriage, popping out the prerequisite pair of twins, slaves as waitresses/pets/kids/wives/princesses occurred often. There was quite a bit of "Gorean Lifestyle" stuff lingering around and people acting like masters or slaves OOC in IM's, and often turning things into some sort of an OOC online fantasy D/s (BDSM Domination/submission) experience.
Meanwhile, Gor Evolved, or GE split off- all those female fighters had to go somewhere. GE continued to be what it was initially, with a bit more roleplay, a few groups branching out to try to play characters, camps, a bit more like in the books. Meter fighting was a staple, though- and attracted men more the women, though there was a lot of people playing cross gender. Pirates, bikers, post-apoc, and the occasional furry were seen. Still a focus on cap/rape/pewpew, but now with a little more roleplay in between in some cases.
BtB evolved and though the emphasis was more on roleplay than lifestyle, somehow it got stuffier. Combat roleplay, sexual roleplay was discouraged as it upset the carefully built status quo and nobody wanted anything bad to happen to their city, characters, NPC kids, etc. Alts weren't allowed, playing cross-gender wasn't allowed, and homosexuality wasn't allowed unless it was two hot chics doing it for a dude, generally behind closed doors because sex in public was frowned upon. Prettier builds, prettier avatars, often doing a really good job of bringing to life the descriptions in the books. The influx of the "GBK Warriors" occurred, female typists playing guys, usually easy to spot with their Tableau Vivant skins, femeboi shape, and long, flowing Fabio hair. Most GBK warriors were gay, throwing off what little sexual landscape survived the Puritinization of SL Gor RP. Slave characters were avoided, treated as furniture or waitresses, free woman characters were seen as more desirable than slaves and pursued/chased for the ultimate plot- secret slave. Political intrigue roleplay was promoted over anything else- often closed off to all except a scant handful of elite friends of the sim owner.
It became harder and harder to just jump into a BtB Gorean sim and find roleplay, with people often parking their avatars inside their houses or else inside a significant point, like a palace- while they did their political intrigue roleplay, leaving public places like taverns, baths, parks, streets, markets generally empty, and lone roleplayers out of luck. Many sims started out busy- with "that new sim smell" to them quickly wearing off as a small group of players close themselves off from anyone else and unconnected roleplayers wander off, unable to find an 'in', then the sim dwindles as the 'elite' group plays out their plots, gets bored, and another sim opens, pretty much killing the sim. Sims open and close at a much faster rate due to this factor in many cases, also many sim owners turn out to be unstable, rude, or impossible to work with OOC, treating people and players badly and running off their player base.
As players got wiser about things like roleplay etiquette- some people got pickier about spending lots of their free time in a hobby where people treat others badly OOC and many of us left SL Gor on a break, keeping an eye out for something better to pop up, or for good. Important things like being able to separate the typist on an OOC level from the character on an IC level became a priority, and many sims and players STILL have problems with that, demanding people playing slave characters act like slaves OOC and "show proper respect", take orders, give tours, do extra busy work like notecard chores, etc. and basically clinging to lifestyle tennets while still blithely insisting on calling themselves roleplayers, not lifestylers, and their sims BtB Roleplay sims, instead of Lifestyle sims, contributing to the frustration and confusion of people who are actually seeking a straight roleplay sim without lifestyle interactions.
And that's pretty much where we were when I left. So...don't know about "feminization", but there's a lot of people treating other people badly OOC, taking things way too seriously, not understanding or having much interest in playing out the source material, not aware of or willing to follow basic roleplay ettiquette, rude/unstable owners/staff, focus on political intrigue while quashing sex/combat roleplay, and cliques avoiding playing with new people and public places leaving single players to wander unable to find roleplay. Can't see as how that's got much to do with 'feminization' there, but- again, this is all just my take. YMWV.
"...to take truth for granted is not to know it. Truth not won is not possessed. We are not entitled to truths for which we have not fought." --- (Marauders of Gor, p.7)http://clockworkkitteh.blogspot.com/