Originally Posted by Walleris

It's actually quite common these days. Singers put out a single that's not on original album version, but then re-release the album with that new song to create some new momentum.

Maroon 5 has done that (Moves Like Jagger), OneRepublic has done that (Love Runs Out), Shawn Mendes did it recently (There's Nothing Holding Me Back) and I'm sure many others.

One of the reasons why 2nd, 3rd, 4th, etc. singles do worse commercially than the lead single (for all artists 95% of the time), is because the later singles aren't new (meaning they're already on the album). Doing a new single with album re-release solve that problem and then can re-boost album sales at the same time.

I don't think that will help much in Bon Jovi case (single-wise they've long been a dead act), but I guess that's what the promotional strategy is.