Well I think this is completely unnecessary at least at this stage. We have enough of language barriers as it is. No one gonna learn a new language that ~120k(at this moment) people may use.  As it is a lot of people have problems talking more than native tongue. And it will make more trouble instead of being useful. (more time and resources consumed on translations and stuff, when it could be used elsewhere). So the simplest and most reasonable solution is: Already existing and commonly used language : English. Not only it would be easier to communicate between ourselves, but also with the rest of the world. Also two subs languages can be chosen, like, Chinese and Spanish or Russian or any other major language of Asgardian population to make less of a burden to some people.

Communication is very important, it's already complicated, so why we must make it harder.. Keep it simple.
Well that's my opinion at least.