Hmm... an interesting option, although it seems to me that it is literally not beneficial for anyone, maybe only for Liverpool, but even then in the short term. They are happy with him in Bavaria, he is doing his job, I think he is happy too - this season he will finally get the title. With all due respect to Liverpool, further titles are much more likely in Bavaria than in Liverpool. The only thing that speaks in favor of this is the return to England.
Considering his age yeah I could agree with the "short term" statement. But he can still preserve a good level for at least a few more years I think.
Liverpool is likely to lose Salah at the end of the season. He has been their main goal source. Then they will need another good scorer to maintain his work from where he left.

He has always been a great player, but he never played for a team that could actually win something. For the first time in his entire career, last season, he played for a team that wins all the titles and cups, and they ended up losing it yet again, somehow Kane curse continued. This season, that looks like it is going to finally break, and at 30+ years old he will finally win something.
Not a shock for Bayern to win the league, they always do that, last year was the weird one. However, can you imagine how weird it would be if Bayern Munich somehow loses enough points that Leverkusen ends up winning the title again? Every Munich fan will hate Kane lol, and the curse will not be just a joke, but people would start to consider it real.
Oh, you are talking about the cursed Harry Kane thing.

Of course there is no such thing as curse etc. but he has really been unlucky with achieving a trophy. But he also played a role in that by not leaving Tottenham much earlier. I hope he will get his first trophy this year.