I also wouldn't be surprised if WXXI changes the call letters of WVWA, as it did with the Houghton station to WXXY.
I *have* to think they will. The only reason I chose WVWA for the 90.3 CP in Auburn was on a lark to get a laugh out of Scott Fybush.

After all, I was as shocked as anyone that we were granted as a singleton (I was pretty sure SOMEONE would MX us) and I had to pick something and quick.
As for what, exactly, they'll change it to...I imagine that'll be determined by what programming goes on it. And therein lies the rub. WVWA's CP was designed around the concept of a single panel antenna on the Cayuga County's e911 cellphone tower just north of Auburn's downtown. It would be aimed right at Geneva, putting 4000 watts that way, and making for somewhat better coverage than WDWN 89.1 has now...so in a car, you'd hear WVWA pretty good from Skaeneateles to Canandaigua. But it wouldn't go much north of Clyde or much south of Romulus. Basically, it was designed to complement WITH back when WITH was slated for the cell tower on Danby Rd just down the hill from Ithaca College.
That was before WXXI LMA'd WITH and before WXXI moved WITH up to the WSQG tower, that changed things; that tower is well-suited for "decent" coverage of most of the Finger Lakes, and it's now sort-of questionable whether WITH's format
needs to be relayed in the northern Finger Lakes. Especially after similar-sounding WRUR gets its new CP on the air with 18kW aimed right at Geneva.
So if not WITH, what? One could make an argument to put WXXI-FM on WVWA. 91.5 comes in "okay" in a lot of that area, but WCNY definitely comes in better at the moment.
One could also make an argument to relay WEOS on WVWA...since currently WEOS does not reach Auburn well at all. However, if WEOS builds out its CP, it will both boost power to 6kW ERP and remove the 1st-adjacent interference problems with WRVO, which are the main reason for WEOS's poor reception in Auburn.
(on a related note, WVWA coming on-air will displace W212BA, and that's a translator worth keeping; power upgrade/frequency change or not...it's real questionable that WEOS will EVER come in solidly in Geneva because the hill the city (and HWS Campus) sits on is on the "wrong" side from the tower. Plus proximity of the translator means students and faculty can always hear "their" station even in thick-walled dorms and offices. Fortunately I know W212BA *can* be moved.)
So yeah, there's a lot of variables in play in choosing new call letters for WVWA. Personally, I think WGEN-FM for "Auburn/GENeva" would be a good one. There's a TV station in the southern USA using the call letters that said I could use 'em if I wanted...but I never got the formal letter drawn up before I left HWS. If a relay of WITH is ultimately chosen, I think WITJ is the closest match to "WITH" that's still available. WAUB-FM would be nice but even if the FLRG allowed it, the FCC wouldn't...and it'd confuse the listeners, too. Pity.
Check out the number of stations plus translators on their website. Try reciting all of those call letters within a minute without passing out or losing your voice.
From an engineering perspective, every day it's getting increasingly easier to have local audio insertion at a transmitter site for the purposes of legal ID insertion.