He's projecting as a bottom-six forward in my opinion.
With his speed and surprising physicality, he's a very effective forechecker and can turn pucks over, draw penalties, and keep teams from cheating on the PP.
I would be surprised if his offensive creativity and shot are reliable enough to turn him into a top six forward, but he is valuable for what he brings to the table. He appears to be a north-south player, good in transition and at cycling, but not necessarily a reliable offensive contributor with the man advantage, or seemingly able to create opportunities out of nothing like Tim Stutzle.
As far as the forward complement is concerned, aside from Stutzle and maybe Tkachuk, everyone else is projecting as a 2nd liner, so it's likely that the team will try and build a balanced attack around the aforementioned pair, Batherson, Norris, Pinto, White, Brown, Formenton and Nick Paul. Greig and Sokolov may earn spots in the years to come.
Dzingel may not factor in beyond this season, though I've liked the pop he's provided, and he genuinely seems to like playing here. Dadonov has been a disappointment I think, he's provided some streaky offence but he was brought in to support the PP and has one assist with the man advantage to show for it.
The challenge around a line-up like that is the lack of upper end skill on the powerplay, which has been a real issue for them this season and potentially going forward. The benefit is that it may be slightly more affordable and provides some depth.
Ultimately I think the lines will be comprised of match-ups based around chemistry, as opposed to sharp delineations in skill level. I had actually picked him among our prospects as the most likely full-time contributor to the team this year, so it was surprising to me that he took this long to get a real shot.
But Dorion and DJ clearly wanted to insulate the younger players on the Senators roster and went out and acquired Dadonov, Stepan, Paquette, Watson among others who essentially created an additional barrier between him and the starting line-up.
His speed, skill set and work ethic have made an immediate impact, and I think we're only now starting to see the kind of roster that Senators fans have been dying to see all year long.
You're right in that Belleville is essentially decimated with all of the promotions this year, with Sokolov, Crookshank, Thomson and Abramov the only legitimate NHL talents on the team.