sure, and then you have to make sure you get the correct radio accessories, as the built in pi wifi isn't going to do so hot acting as the hotspot for multiple video streaming devices.
Radios which you also have to vet against the approved hardware list for OpenWRT, and having multiple channels is even more of an issue with the lack of USB ports (depending on model)
Linksys luckily still sells OpenWRT specific routers.