There is still so much more to see if you know what happens during the Thousand Year Blood War arc, so I doubt it could be condensed into only 13 episodes. I will say though, from what else has released this year Bleach is leagues beyond a majority of other new Anime out this year. Great designs, fights, OG voice actors, the animation is superb in so many areas compared to something like Demon Slayer (which is still good in its own way). I would recommend Bleach and Cyberpunk: Edgerunners as the two top contenders for this year alone, but again its just getting started 6 episodes deep, still a ton going on, but you know this is gonna be a long and action-packed arc if you've read the manga.
Overall, I'm giving it a 10 because unlike other Shonen that have lost a lot of what made them special back in the day (Think about how Naruto has devolved into Boruto), I really only think the only other Anime that can stand the test of time like that is One Piece. In terms of the sub vs dub I think both are great but there's definitely a lot of rust going on with the dub voice actors comparatively to the OG japanese VAs. Johnny Yong Bosch sounds identical and gives the same energy as he did way back in the day as Ichigo, of course, and Chad's voice actor replacement fits superbly but overall I think the sub may be more ideal if you are new to Bleach. Back then, the dub was one of the best around and still holds up, I just think COVID has complicated a lot of the recording process for the dub artists and in Japan it's more intimate (you're required to show up at the studio to record in most circumstances, whereas western dubs you can usually get away with recording at home). It's more of a circumstance of the time we're living in, but it's amazing to see Tite Kubo's work brought to life once more for one final masterpiece.