One sentence. BAD for Liu Bei. If this is after Chibi, then the rivalry between Kongming and Zhou Yu had become bitter, to the point of murder. Sun Quan would have cut his way north, gained support of able men there, and would have cut off Jing and surrounded Liu Bei. Repelling both Sun Quan at Jing Bei and Zhou Yu from Chaisang would ultimately have crushed Bei. Zhou Yu would have happily disposed of Liu Bei and as for Kongming, well, he'd be killed as well.
Zhou Yu would then have gone on to take the provinces of Xu, Yu and possibly even the Capital Districts. Then, a protracted war with the remains of the Cao clan would have been like the Yuans. Cao Pi, Cao Zhang and Cao Zhi would have fought it out for control. The other sons would have fled or surrendered or been killed. Eventually, Sun Quan would emerge as the winner and we don't know what he would have done with the Emperor. Probably depose him.