Beagleboard just introduced the x15, actually I think it's impossible to buy one yet in the US. There are also a gazillion cool projects for which the BeagleBone Black and similar boards are well suited, even if outdated in terms of the CPU. Also, the PRU (Programmable Realtime Unit) on those processors is so insanely useful it's a real shame that TI is getting out of the biz. But anyway, the Beagle_____ ecosystem won't be going away anytime soon.