I believe their intent is to remain compatible with themes and plugins through their v1.xx roadmap. I know WordPress is making their roadmap sound great. But I also know the realities at this time.
I am a purchaser of yours. I hope as time goes on, you may consider taking a closer look at the ClassicPress project and see that CP could be a pretty good idea to work with as well.
Being a business owner myself, I sometimes have to take into consideration that related branches of something could very well be an advantage. Loyalty is wonderful, but so is diversity when it makes sense.
I do know there has been a lot of rhetoric relating to the fork. I hope business sense overrides some of that (down the road, of course). ๐
And if not for you, would you consider allowing license to fork your project to go with CP at some point?