Potters boss Mark Hughes has significantly boosted his squad this summer, bringing in six new players so far.
With added competition for places at the Britannia Stadium, Walters admits that he may move on in the near future.
"We now have a huge squad and I'm pretty sure the club will want to get players out," the Republic of Ireland international, 30, told The Sentinel.
"There will be speculation because I haven't played as much and I see there have been rumours about myself and Peter Crouch.
"It's not for me to consider, it's for the club, but if the manager turns round and says we've got enough players and we are accepting an offer, what can you do?"
West Bromwich Albion are understood to be monitoring Walters's transfer situation at Stoke.