We aren't going to know until we've either seen it, or waited a couple years and the game's definitely not supported anymore.
It's one of the easier ones, it's got some support, it's got a decent enough chance.
I'd personally like another Saurolophine in general, Saurolophus or Gryposaurus are decently different, you could even go Secernosaurus or similar if you want to include a South American Hadrosaur.
Hadrosaurus might also be interesting for the novel presence and fact it's one of the few dinos of the Eastern US, though to be physically interesting would involve making up a fair bit or taking traits from other species.