Are there any plans for a features list before(!) the release of the new version? Just something rough to see where we are going?!

Currently there is no actual active changelog available, so I can only tell you what I have been told by Simon, Alex & David via email, skype or Asana (an online project management/planning system thingy) - most of the things I know can be found on this thread or on a couple of others. I'm not allowed to specify an actual release date or certain things as some things could be subject to change if not done on time or if they cause problems with other features etc.
As I have already mentioned the upcoming releases main feature will hopefully be cross-platform support which will hopefully include stable build options for (windows, mac, linux, ios & android) - I do not know if stable mac & linux versions of the editor will be available/ready or not. The release may include 2.5D support (if done in time) & should also include a new sound engine (added for cross-platform reasons), some new exclusive to vs lua commands, a new built in Lua script editor based on the scintilla source code (I think), some bug fixes & overhauled engine in general to reduce required memory/processing power & so on... This is just some of the stuff I know about, but nothing is 100% guaranteed.