Would one of the major Linux companies not want to take on development of Mer/Nemo as a future proofing bet on a mobile future? Redhat, Suse etc?

I presume Jolla would have had talks along those lines rather than taking it all on themselves already but it's not happened.

I'd love to see a number of smaller UI / product focussed companies providing experiences on top of the core. Is the lack of those currently because it's too difficult or is there some block preventing others?