So for next season I don't think Chelsea will establish themselves as competitors in the race for the EPL Trophy. But in the next season it is likely that Chelsea will target the top 4 as their target until the end of the season. Well, like a team that is being rebuilt due to a slump in the last season, it certainly takes time to be able to compete in the title race.For that, I think Pochettino will maximize the best possible opportunities next season to be able to bring Chelsea to a better ranking and if that works they will have a wiser season in the coming seasons to enter in the hunt for the title. For Chelsea they have made a lot of sales in this transfer window and they will likely need time to establish themselves as a more consistent team and the strongest in the EPL.
In any case, Mauricio Pochettino will need some time to build a team that matches his vision of the game, so I do not expect Chelsea to seize the lead from the very beginning and hold it until the end of the season. It is not necessary to have greatly inflated expectations from Chelsea, because other clubs are also strengthening and coaches have been working there for several seasons and therefore they already have a backbone on which to rely.