Will there be a time when new things are not added to Fusion 2.5 and it goes into a fix bugs only stage of development? imoho I say lock it down asap and focus all extra time on F3.
It seems that every new beta or version is followed by a massive thread with multiple requests for new things or extra ways of doing things to be added.
Maybe these new things could be added to a suggestion list thread for things that Fusion 3 could do. Then the community can discuss or add input to help give the Clickteam Devs ideas and thoughts on them.
F2.5 is great and works well as it is. of course fix bugs and make updates to the exporters to keep them working due to outside changes. Please just work on F3.