A lot is being said about Gustaffson's reach being close to Jones. With Jones having 84.5 inches compared to Gustafsson 81.2 inches.
Firstly, that still gives Jones a sizeable reach advantage. Jone's long reach is the best asset you can in MMA because unlike speed, athleticism, reflexes, strength, or an iron chin, reach won't degrade with age. And Jones knows how to utilize his reach unlike some such as Skyscraper.
Secondly, even if Gustaffsson had the exact same reach as Jones, that just makes it like the majority of MMA fights where fighters have similar reaches.
I think they are making too big a deal about Gustafsson's reach. It'd be a big deal if he had a large reach advantage over Jones. In the end, it's just like an average fight with the fighters having similar reaches.
Jones will be too fast, too strong, his wrestling will be too good, his striking will too overwhelming, and how he mixes his striking and takedowns will be far too much for Gustaffson. Expect a late 1st round to early 2nd round finish via TKO/KO or submission.
Glover is the next so-called worthy opponent after Gus and he showed that he will not even make Jones break a sweat after his fight with Bader. There really is no opponent for Jones including Glover or Gus. I'd say superfight with Anderson or Cain.