questions regardin ISPc3 features

[iDen]

Hello
I'm going to deploy web hosting ISPConfig for about 300-500 users and i'm interested in some features. I was googling but didn't get clear answer.

Does ISPConfig3 fully supports php-fpm for both apache and nginx (more interested in apache+php-fpm support)

How it's real to get Dovecot 2.x (2.0.17, 2.1) support in nearest feature ? This part is very very important for me.

Any roadmap for future versions ? Or just randomly completing feature requests in bug tracker?

Thanks in advance.
Waiting for feedback.