Sequencing on only 16 pads? What do tou mean?
AFAIK, all MPCs have always had pad banks (4-6 of them), so you certainly have more than 16 pads. Furthermore, you usually have loads and loads of tracks, each with their own pads/banks (unless you deliberately load the same sound program into the track). Then there's the support for ext. footswitches, also a staple feature on almost every MPC, allowing looper style recording/overdubs of MIDI sequencing while you just play the sounds with a MIDI keyboard etc. You can record both the sampler or ext MIDI devices this way. To this day I haven't found a more elegant hardware workflow. Maybe something like a circlon also does this, never used one?
And this is routine stuff for almost every MPC model out there. So it is looking good right now. Hell you can even dump MIDI sysex into some MPC sequencers and it will play it out nice and easy upon playback
btw, AFAIR the MPC live is the smaller model. Also another standalone MPC has been rumoured, named "legacy". I guess that one is the ren looking model we've seen earlier at the microsoft presentation some years back? They're going to show it off by NAMM2017.
The live will run linux, a quadcore 1.6GHz cpu. Rumours pointing towards a > 1000 $ pricepoint.