I doubt it. IT work is pretty easy to send abroad as it is, so if an employer is only looking at cost, that's already been an option for the past 10/15 years. It's only going to get easier in the future.

And if it were, across the board, a lot of other things would get a bit cheaper too, no?

Also:

https://en.wikipedia.org/wiki/Lump_of_labour_fallacy