Yes, I do hope Thomas gets back on the Atari again. I think he kind of took a break after the release of ACE 2. Sometimes real life comes in between!
And about Hatari. I think we the Hatari team to thank for a lot of releases the last 10 years. Without Hatari a lot of people would never have gotten back into programming the Atari again (me included). Some demos/screens have even been developed exclusively on Hatari by people not even owning the real hardware. That I find to be a bit amusing actually!