Yeah. And now the current Superman is married to Lois and Lois is, I believe, the Editor-in-Chief of the Daily Planet. Funny how things work out!
I kinda like the idea from the new JSA series that our Kal-El will eventually become a lot like Kal-L, and wear his suit with the Golden Age-esq chest symbol.
The appeal of Earth 2 and those versions of the character ultimately was that they advance the status quo in a way that the then-current Silver/Bronze Age versions wouldn't. All that has changed now. So in that sense Kal-L is kinda redundant.
But if they have a great story for him that's worthy of bringing him back...why not?