Everyone needs to be patient.
I'm sure these guys are all working flat out, but there is so much too do, i.e. music, kits, stadiums, boots, balls, etc, etc.
They are also working for free, so give them a break.
In the first instance they need to find the code that Konami used and then the appropriate software to be able to edit and patch things.
I believe it is different from PES4.
I'm sure in the end it will be worthwhile.