I have been busier than expected the past month and a half, so haven't made much progress on completing the Playlist rewrite. That is the major backend change in FPP v2.0, so we can't release without it. Ditto for the UI rewrite that Tim is working on. I would like to have a beta out before the Expo, but right now I'm beginning to have my doubts if I could meet that self-imposed deadline and I haven't had a chance to discuss with Tim yet due to my schedule over the past weeks. I still have a lot of backend work to do to support the new UI as well.
There are several things in both the new playlist code and new Channel Outputs that I personally want to use this year, so I have definitely have incentive to keep chugging along. If we can't get the UI bolted on before late summer then you may see an interim release with some changes like the new Channel Outputs and keep the playlist and UI for v2.0.