How about make your own?, Like an original super hostile map. Or maybe these are all oroiginal?
Hmm... Probably in 0.5.0 the nether machine will be interesting and of course will be integrated.
I might do a trainingsmap or some painwater stuff, but currently only vechs maps planned (that might change after 0.5.0 )
But for now chill & enjoy (i have exams tomorrow so on wednessday i can invest my full time in PE!!