He runs a 4.4 40. He'll be 25 in January. He can absolutely have an impact in the NFL, and with the less restrictive rosters he'll be hugely useful as an H-Back and special teamer, taking the odd snap in some gadget plays. See what New Orleans does with Taysom Hill. Streveler already played some receiver at Minnesota.
I would be shocked if Streveler wasn't in a NFL training camp next season. Everybody knows what's coming and he can still run through and around an entire CFL defense on a broken foot. An NFL team can sign him with absolutely no commitment, why wouldn't they? This guy has already proven dominant against pro football players.