Oh I agree that the border could very well stay were it is and if it does it wouldn’t bother me one bit. But I could also see it moving north depending on how the southern Albanians view their Northern brethren and ow their most Southern neighbors are treated by their new government. There’s already a dialect and religious divide between the two regions, so it’s not that hard to see them turning on each other at some point. Especially if the Southern Albanians begin to get persecuted and associate their Sunni Cousins with their persecutors. If the Greeks treat the Cham and other Albanians in their new acquisitions well they could very well see the Greeks as Saviors. It’s also been noted by quite a few people that the Albanian identity while present is quite nebulous at the moment. Greece in TTL still has time to court southern Albanians with schools and economic support. Perhaps with these tools they can start to see the Greeks are preferable to the persecuting Ottomans.I had mentioned before that the only worthwhile targets in the OTL Albania is Valona and Korce. However, Korce belongs to Macedonia rather than Epirus.
I gave some more thought on Valona and I m inclined that its value depends on the development of infrastructure. Bear with me.
In OTL by 1886 , five years after Thessaly's annexation, the railroard from Volos reached Kalampaka on the slopes of Pindus mountains. In OTL, Trikoupis envisioned the continuation of this line towards the west - an Adriatic Railroad. In contrast to OTL, Greece has now Epirus, with Igoumenitsa as a suitable place to develop a major port. As Igoumenitsa is protected by the mountains of Northern Epirus, it is a very secure strategic location. Valona would always be exposed to the north via broad plains, making its defence problematic at best.
An east-west railroad will be of incredible strategic value and will provide a lot of commercial opportunities. It goes without saying that the projection of military power will be significantly enhanced as well.
Therefore, if the Greeks manage to build a railway through the Pindus Mountains and reach Igoumenitsa, Valona loses its strategic value and becomes a liability as it is located outside of the defensible Epirus.
Therefore, after giving it a great deal of thought and reading again the OTL proposed railway projects, I am inclined to agree that this may very well be the final Epirus border.
And as I mentioned having a decently large Bektashi minority in their country that is loyal and treated well could do amazing things for Greek-Muslim relations when it comes to more diverse provinces in the future. Population exchanges are probably inevitable on some level but there’s a possibility that at least in certain areas and for certain groups they’d truly be voluntary which is great in both a humanitarian and economic sense. There could be a thriving Greek speaking Muslim community in Greece ITTL as opposed to then being scattered and being assimilated.