Future NASA Europa Mission

[Rynn]

Guess it depends on whether they are serious about helium 3 mining.

If it turns out to be viable we may still see and industrialised moon before well established colonies on Mars.

He3 is useful for generation 2 fusion reactors, we haven't even built the first generation yet! On top of that you can breed He3 (in theory) from certain types of fusion reactors. In other words there's no reason there would be a He3 rush any decade soon.