I think their writing staff has been talking XSF up, but it's hard to see him making the roster.
I don't see them doing 10, and probably not even 9 unless they like another T, which I hope they do.
With Looney and McGovern, we've already got 2 interior backup oline. If we needed extra, it's more at T than interior, and XSF is only a guard, and not a center. They may want to keep Redmond over XSF too, as a future replacement for Looney.
Backups, in order
6 Fleming
7 Looney
8 McGovern
9 T/Redmond/XSF
With more guys we want to keep than roster spots, and them going light on the oline in recent years, I don't see XSF making the cut. I doubt we go 9 with anyone.