If those other teams 'strengthen', then they too by definition have the 'unknowns' that might turn out to be crap. Therefore, if they don't strengthen I think it unlikely that they'll catch us and if they do strengthen then they have the same risks which we do and unless all their signings are brilliant and ours are crap then we have status quo.
Personally I can't see us finishing outside the top ten and probably we'll finish about 8th again given the teams that finished below us last year. IMO