Is been awhile, but there is another point in favor of Willshaper for Adolin.
When Dalinar awakens and summons the Honor Perpendicularity, he says "Two more people crossed the battlefield. Lift he had anticipated. But the assassin? Szeth scooped the silvery sheath off the ground and slammed his black Shardblade into it, before stepping up to join Dalinar. Skybreaker, Dalinar thought, counting them off. Edgedancer. That was seven. He would have expected three more. There, the Stormfather said. Behind your niece. Two more people appeared in the shadow of the wall." (The two people were Taln, a stoneward, and Ash, a Lightweaver).
Adolin is also on the field being healed by Renarin.
The only two missing groups are Dustbringers and Willshapers. So where are the Dustbringers? I have two guesses. One is that Nightblood counts as a Dustbringer. If you know Nightblood, you know why. The second guess is that Amaram became one as soon as he swallowed the smokestone, which had a powerful Unmade in it, potentially created from an Ashspren, who "like to break things and see what is inside" Amaram's armor continuously breaks and the inside is slowly shown to all.
It's safe to assume Adolin isn't going to be a Dustbringer, so it doesn't really matter who counts as one in Dalinar's "thought there would be ten" statement.
Hope this makes sense!
