I do not doubt that it will be good and on modern hardware it will fly. But people today are not really interested in OS or hardware anymore, that is for geeks "old" retro guys like us who have seen computer in 8bit area progressing (my first computer was a C64). Today even smartphones have 4 cores, you have plenty of powerful and cheap hardware, the priority has shifted from hardware to software, OS is mainly a tool where the apps run. So even if MorphOS is modern in todays terms and runs on new fast hardware it will not change much as long there is no modern infrastructure of supported services, up-to-date browser is just one example (a important one of course). It is very hard to play in that league without the resources, even morphos devs cannot be cloned :) and they do it in spare time. At the same time when changed to much it alienates the "old users" who see it as a updated amiga. It is difficult to satisfy both groups but if you do not manage to attract the new users outside it could be there without any users at all.