Kepa is now a new target for Bayern Munich after Yann Sommer joined Inter and sees that the opportunity is indeed quite realizable as long as both parties agree with the offer on the table. We know that Chelsea have just brought in new goalkeeper Robert Sanchez from Brighton and that also threatens Kepa's position as the main goalkeeper, especially since last season Kepa was also not so optimal with Chelsea. On the other hand, Bayern Munich will maximize all possibilities because not only Kepa is on his target list, but there are Geronimo Rulli and Yassine Bounou who are also candidates for the new goalkeeper.
I believe this will happen, Bayern Munich currently don't have any good goalkeeper except Neuer, but he's still injured until the next month. Kepa is a good goalkeeper, the reason why his performance was bad in the last season is Chelsea's defenders were bad.
Robert Sanchez isn't even better than Kepa, this is another risky move by Pochettino.
I saw Neuer return from a long-term injury that kept him out for the second half of last season, but after a few days of training it was clear that he wasn't ready to return, and Yann Sommer has also officially left for Inter Milan. This leaves Tuchel with little choice in goal for Bayern Munich. Kepa is a good option for Bayern Munich at the moment, in his 29 appearances, he has recorded the highest save percentage in the league. Regarding his poor performance last season, I honestly wouldn't blame him because as you said Chelsea's defense is very weak. Kepa is still 28 years old and this is still quite young for a goalkeeper, he is no longer the main goalkeeper for Chelsea because they have brought Robert Sanchez from Brighton, I will wait for Bayern Munich's agreement with Chelsea regarding him, and I believe it will happen soon.