I'm looking forward for Digitakt.
I like how the Elektron workflow kind of inherits the x0x sequencer and takes it to another level. Also DT feels more like a concise piece of gear, looks really nicely designed.
That said, the sequencer plays a big role for me. Trigger conditions are great, love it, but I'm expecting more flexibility (i.e. tempo multiplier/divider per track) so I can really use it as a master sequencer for all my gear. Imagine needing to use 2 patterns just cause your 64 steps sequencer can't deal with longer pads or something. It really limits your results in a bad way.