Don't forget, there had been a program to equip and
Don't forget, there had been a program to equip and train 30 light infantry divisions of the ROC in Yunnan for much of 1943-45 ("Y" Force) which were supposed to be brought up to the standards of the three ROC divisions (22nd, 30th, and 38th) trained at Ramgarh by Stilwell et al in 1943-44 as X Force and used quite effectively in Burma in 1944-45 as part of the NCAC.
If such a force had been raised in Yunnan, the basic operational concept is they would function as an actual mobile field army (within limits) along AUS lines; the Provisional Armored Group had been raised in Burma with six tank battalions (with integrated American and Chinese crews) to serve as a spearhead.
With the 14th AF for tac air, the combination would have been quite capable of ripping up the IJA that was left in China by 1945, but the problem, as always, is the CBI's strategic reach exceeded its operational grasp, due largely to a) logistics, and b) the reality the KMT did not want to fight the IJA in China, they wanted to fight the PLA.
If Eichelberger (8th), Hodges (1st) Krueger (6th), and Stilwell (10th) were the army commanders for OLYMPIC and CORONET, then the choices of general officers with experience at the army level is fairly limited; Gerow (15th), Patch (7th), Patton (3rd), Simpson (9th), and Truscott (5th) are the bench, and Patton or Patch (given his experience against the Japanese as a corps commander) would be likely candidates.
Afterwards, Patton would have been the obvious choice for the Armored Center, and if he retired in 1949, a military college position would seem likely - Norwich, certainly, given the armor connection; maybe Texas A&M, VMI, or Virginia Tech, given the Patton's Virginia roots. One of the UCs is a stretch, but not impossible; GSP's California roots were deep, as well.
GSP at Cal, UCLA, Davis, or Santa Barbara in the late 1940s, under Sproul, actually might have been a good fit; given the number of GI Bill students, and the fact the system had not really expanded yet, could have given George and Bea a peaceful "last go" before he retired for good.
Politics probably would not have interested him, at least not immediately; I don't see him as a legislator, and a mayoralty would be too small, but I certainly could see him as a gubernatorial candidate in California ... Hawaii would be another possibility; he had served there for two long tours during the interwar period...
There's a stereotype of Patton as being simply a warrior, but he had seen his share; there's a great clip on You Tube of GSP and Jimmy Doolittle at a bond rally in Los Angeles, after VE Day; it is worth finding and watching, and listening to what GSP had to say at that point in his life. The man had been a soldier for four decades by the end of WW II - he, like so many of his contemporaries, had seen enough of it.
Best,