Update:

>> What ever CPU Trevor and the engineers at Varisys decide to use for the
>> next A-Eon motherboard design, I hope that [...] it will be a design that
>> appeals to the MorphOS Dev. Team, so a port might be possible.

> http://www.amiga.org/forums/showpost.php?p=717208 ;-)

http://www.amiga-news.de/en/news/AN-2015-04-00032-EN.html :-)

There seems to be L3 cache support even, as opposed to OS4.