At the current rate we will soon have phones with 8GB RAM and who knows how many cores not having to rewrite same code 3 times in 3 lang. will def. be catching on more.
If by soon you mean in 2 years on flagships (looking at current specs, I don't buy it), then for regular users buying regular smartphones it'll be ~7 years from now.
I don't feel like this is a valid justification for being wasteful, though.
I don't feel like this is a valid justification for being wasteful, though.