2.0 MyBB2 _ based on Laravel or YII ??

[StefanT]

Both are supported by YII and Zend too as far as I know.

There are obviously several frameworks which could have been used but we had to choose one to be able to start developing.

Current plugin developers, designers and other third party developers have not been asked enough about their framework preferences or informed why MyBB devs have chosen Laravel.
You might loose some of the most popular plugin and third party developers with that decision.

Asking developers about their framework preferences is pretty pointless. There are several well known PHP frameworks and each one has its fans. Some users even suggested not to use a framework at all. It's simply not possible to please everybody...
In the end the preferences and experiences of our developers are more important since they have to developer MyBB 2.0 and they must work with the framework.