I think we'll see some more foot pedals from them next, just out of the blue and available to buy like last time. What's to say they don't keep expanding their market in other unexpected ways, like with a digitally modelled tube amp or something weird like that? Digitakt will be a hit, I think, and I'm guessing they'd probably like all of their products to be hits. But the new UI and form factor and design of the DT, its a shame the AH just missed out on it. Honestly all the complaints they receive about what box does or doesn't have, it would be cool to see the whole current lineup get a DT-style revamp, fixing little quirks here and there - the OT could get the DT screen and trig improvements, and sampling workflows, the A4 could get its individual outs and the AR a better input, sampling capability and maybe ext Midi sequencing on both. And hell just refresh the AH to the new style too. I don't think it would diminish the current models and they'd still be coveted and well priced on the second hand market. But it would bring everything they have into the present day without necessarily having to reinvent the wheel.
Something Elektron haven't done before is a kindve dedicated bass box, well maybe the sidstation was that box. I could definately see them putting out a bass machine in the new format. But if they did do something MnM esque I'd certainly be intrigued to see how it moulded to the new format. While delay and verb sends are cool its been a staple on their past 3 instruments, its a shame to not see a different type of effect send here or there just to spice up the character between the machines.
Still, I think the DT will prove surprisingly useful in music making, I like its simple concept. Its warmed to me over the last few months from being a 'don't care' to considering a pre-order 
