Definitely possible to 'treat' the Pianoteq pianos (Standard and Pro) to achieve results similar to the Felt piano mentioned.
In the FXP Corner, users have uploaded some presets which might be of interest along those lines.
On the second page currently (at least in my browser), there's "Unda Corda Corso Soundtrack" and "Yamaha(Olafur-Nils)2" worth trying.
This has been a topic on the forum before - a search for 'felt piano' might reveal some really interesting info from previous threads
A little trick, for rhythmic 'particle engine' type effects, you can use some of the effects in Pianoteq - I uploaded an FXP called "FilmEsque" a few months back (on the first page) to display that kind of effect as being possible, including 2 delays with different timings, not exactly like the felt piano's particle engine but certainly in the same world. Edit to your desired effect, change timing and tones and so on to suit.
I imagine off top of head, if you loaded say the "Yamaha(Olafur-Nils)2", then took the particle engine idea from "FilmEsque", you'd maybe have something getting really interestingly close
Other elements of the Felt piano sound, can be similarly achieved by using various sliders for things like blooming slider as well as tweaking heavily the spectrum profile sliders.
By hitting the "Random" button on top right of the interface, you can get a feel for what all the sliders do - and the kinds of results from really pushing things around can be further tuned to your liking if you randomly find something you like - just time and some interest in it is all it takes to get some fantastic custom treated sounds.
I really would like to work on a version of the FilmEsque FXP which is in that general ball park - may have time later this week.
Hope that's a worthwhile read.
Pianoteq Studio Bundle (Pro plus all instruments) - Kawai MP11 digital piano - Yamaha HS8 monitors