Impossible to say, games and applications are starting to benefit from more threads and the 1400 has 8 versus the 4 of recent i5 generations. The i5's have stronger cores and generally perform better as a result as most things don't use all 8 threads. The 1400 would give a great platform for upgrades as from what I read Ryzen 2 will use the same motherboards.
As I said it comes down to performance now over future upgrade path. Look up reviews of the 1400, if you think it will meet your needs which it sounds like it would then it sounds like a better long term option but I'm guessing, I don't know what will happen.