Essentially, the answer to your question is yes. All the developers for iOS5 tweaks are hard at work (I'm sure) to update their tweaks for the new firmware. If you're on iOS5 and JB'd, you'll just have to keep a careful eye out for what's been updated.
Oh, and I'd suggest you get SBSettings and probably OpenSSH (change that password!) - just in case you need to get to safe mode. For me, I have both, and I've also added an Activator command so I cab use my volume buttons to get to safe mode. 'cause you never know...
/Helpful, gentle hint.
And, for iOS5 tweaks - this applies to all who's waiting - please remember these developers have "regular" jobs and probably can only work on their tweaks when they have time. So, please, a little patience.
Marilyn