Masteria Expansions, Names and the proof for each

Okay, I've edited a screenshot to show my thoughts, I'd like to see what other people think.

 Spoiler

The black shows what I think will be Foxwit's Den. The blue is Krakia, which you get to from that weird pyramid thing in the Krakian Jungle Basin map (hence the arrow). The red shows the way to Vineland, because... well, I don't know where else that would go. xD The arrow shows where Vineland will be imo.

The blue thing is random scenery. You see it in the background when you're in those maps. The triangle thing is similar, you see one of those above foxwit and another of them out in the middle of nowhere, I believe.