You just need to release a remastered version of one of the classic PES' parts. Whether PES 5, 6, 2008, 2010, 2013, 2014 - it doesn't matter.
If you release it, the gamers will forget the whole negative over eFootball 2022.
Also, you do not need to purchase additional licenses, as you do already own them.
This project will gather old/new fans around the game. It will be great, and everyone will forget FIFA if they can go back in time and play for their favorite team once again. (Not as "iconic players" in FUT mode)

Look, your managers receive thousands of dollars for crappy ideas that ruin your reputation, but I give this tip away for free because I love this game, and I know what I and thousands of other gamers would love to see.
It's a great shot, don't miss it.

If you don't want to release a separate game or don't have a budget for it, you can release a DLC of a particular season,
Furthermore, you can release a DLC of a particular season with each part of eFootball.
For example: with eFootball 2022 you can release the DLC of the season 2001-2002.
With next part, eFootball 2023, you can make a DLC of the season 2002-2003, and like this...
The time range could be 20, 15, or 10 years. That's up to you.
About the name: you can call it just "Pes season 2002-2003" or "Back in time: Season 2002-2003" or "Back to the season 2002-2003".

This DLC will give you additional (previously projected) revenue.

And the last please stop working for zoomers. As they are kids and glory-hunters that they flow by the mainstream. Fifa is the mainstream now! Realize this! From lads in bars to teenagers in schools, every single glory hunter plays Fifa. It's a fact.
They know that others play, and they do want to be like others. The only way to have some fame is by releasing a good game. Like it was with PES 2007 or Pes 2010. Please, stop trying to invade the wheel again.

Only if you become the mainstream futsim - the zoomers will come to you. In all other cases you will lose your fans.

If your management says "It's not possible, because the licence for example PES 6 was for the season 2005-2006" - FIRE THEM.

A clear indication that they don't care about the product ("lazy to care") - just came to work to kiss some asses and back home.

PES was never about licences! London Blue, East London were in PES 6, but players somehow played it!

You can recreate the entire game through the same FIFPRO license or any other (if there are).
Give the teams fake names, and here you hecking are!

And it doesn't matter how many clubs will be! Sure you can't have all TOP5 leagues. However, and here I can give you a tip! Why not to release players with fake names just like you did before.

Moreover, you can release "an unofficial" patch on names and faces on some PES modding website.

In one Steam guide I gave the working idea that NONE of your managers could not since 2021. FOUR years.