I can’t see it. Reasons below.
Western Corridor has some of QLD’s biggest companies especially in Toowoomba of all places. Commercially, Western Corridor into Darling Downs could “commercially and financially” sustain its own team IF big businesses were to put corporate dollars into a franchise. Think McNabs, Wagners, FKG’s etc. Western Corridor as a region doesn’t necessarily need East Tigers money.
Another point; Ipswich Jets for all their Q-Cup 1st grade failings in recent years are still developing juniors reasonably well and in volume. Pathways both in junior club land and schools under their umbrella is working.
Admittedly Tigers are slowly encroaching close to Ipswich/Jets area. Geographically, the nearest Tigers affiliated club is Flagstone Tigers (just out from Jimboomba). However this is more a failing from Souths Logan Magpies in streamlining Logan (it’s a big region and Maggies don’t have that much cash) than anything else.
This might change of course and Tigers might get QRL and NRL’s blessing to post up in the western corridor and bid for a license out of there but I’d be surprised if the governing bodies or East Tigers themselves would actually want to.