So you want a Mpc Live, to sum up.
A sampler with linear midi seq.
For plocks PC I use Event Processor +.
With 3 Lfos, you can have interesting randomness as conditional trigs.
A touch screen would be too big on an Elektron size.
If you have a usb midi controller pluged maybe you don't need pads.
You already have 4 voices in Ot ! 8 would be better with different note length (linear seq).
You already have real-time time stretch !
I'd like Usb connection, OB (I don't use in A4), numerical audio i/o, auto chop too.