Yes, why not. Just post it on this [thread][1]. The name is not fixed yet. The names you suggest may end up being the world name or name of the many levels in this new hitherto hypothetical world.
Also do check up the many names already suggested by many enthusiasts (include me too). Nick has even selected some and hopes to use those names from the same [thread][1].
A tip: Avoid the word ‘mountain’ in the name as there is already a mountain world
Cheers
[1]: [Idea] Volcanoe World Name