They've already revived the Incredible Hulk title, so that's not going to happen.
As to sales, it does reasonably well. It's in the 60s/70s on the Diamond chart, numbers in the mid/low 30K. Obviously it's not a series that can stand to lose too many readers, but it's fairly strong given what it is, and Marvel's higher-ups are clearly fans of it. The upcoming story is getting some decent promotion as well (special prologue and all), so hopefully that will attract some additional people.