Sometimes the environment will change with you, sometimes it won't.
I'm the same way, considering I'm a workout freak. I go to a small YMCA where everyone knows everyone. I can't really figure out if I should stay there or eventually quit going and workout on my own until I move to another city.
I know there's a lot of close minded people there. I know there'd be a lot of stress to be like, "hey, don't call me this anymore, call me that." Just because someone might not be accepting, doesn't make that person a bad person.
I think when it comes down to it, I'd rather leave an impression on myself in favor of all my friends there. I'd love to keep going for years and stuff but... all in all, it doesn't seem likely I'll be able to manage that. I like it the way things are now, if I were to cut it off then hell, I've got some great memories. I think if it's a large studio, you should cut it off. There's no use in putting a place that people come to to relax and get away from life into a level on discomfort, all because a few people might not like it. A dojo can be a violent place when people don't get along. I'd see if there's some people you can trust to tell, and tell them. Spar with them outside, in the park, back yard, whatever. Keep it alive in you. If it spreads around as a rumor and people seem to be okay with it, then maybe it'll workout for you to stay.
All in all, the hormones shouldn't effect your performance too much. You should keep your explosive power as long as you don't slack off. I'm noticing some major decreases in power but, I'm changing my routines to make up for it and am actually coming out stronger than I was before HRT.
Oh God, I'm gonna have to come out to the SCA. Lol, I'm NOT quitting them, but luckily they're by nature open minded already, they swing swords around and pretend to be knights and stuff>.>