if you predicted the name to include Heat, there is a high chance you guessed correctly.
..yes and no. There are a few things to consider.
For starters, that retailer has very little credibility - see their listings for games like Battlefield: Bad Company 3 (which, according to the equivalent Reddit post, has been in their catalogue for over a year) and GTA VI - both games that, at best, come from the rumor mill with no official word to back them up. Not unlike the title of the next NFS.
Secondly, as far as I know, this is the only "leak" thus far, and as we've just discussed, these people are not the best source out there, and neither is the obligatory IGN article on this (yes, that's a thing already). Tag me when Amazon has a listing. *Then* we can start discussing if there really is something to it.
Thirdly - and this is more of a nitpick but this is my post on the internet I can do what I want - "Need for Speed: Heat"? Not only does it have potential as a say-this-fast-ten-times thing, but unless it's a really clever acronym (and we all know Ghosts track record of "clever" things, don't we?), this might just be the least inspiring name in franchise history - yes, more so than Carbon.
The one tiny shred of credibility this has is that it has now seemingly vanished from the store. If this is peoples' first time in the Silly Season, this doesn't make much sense, but history tells us that leaks that turn out correct in the end are removed rather quickly - you know, NDAs and stuff. Before everyone takes that entire thing out of context as proof that this is "100% definitely real", that's not to say that the same can't happen to false leaks - remember all the GT7 ones that was there one day and gone the next?
TL;DR hold your chickens and don't count your horses just yet. Let's not forget that online marketplaces in particular has the same sort of knack for preorders as EA has for sUrPrIsE mEcHaNiCs.