Hi everyone, everything you're saying is great. Following the logic of the pack included in January, everything that will be added in the next DLC will be related to events that occurred in Greece or Sweden. These are the most extreme rallies on the calendar historically, if we don't take Kenya into account. It's also true that they've added new cars in the most modern categories of the game. They haven't added any classic cars (pre-1999).
They will add classic cars that have performed feats in the rallies of Greece or Sweden, and that are not included in the game currently. Taking this into account I think they could add the following:
6 new stages in Greece and 6 new stages in Sweden.
New Liveries for the cars involved in the feats.
Ford Escord WRC, Datsun 160J, Fiat 124 Sport Spider, Lotus Cortina, Audi Quattro (1982), Saab 96 Sport, Ford Cortina Lotus (Taurus), Saab 99 Turbo, Mazda 323 4WD, Toyota Célica Turbo 4WD, Mitsubishi Evolutions (II, III, IV), Porsche 911 S.
I think they won't release WRC 25. They will release an update to the 2025 season in November this year. The second DLC pack will be released in April this year. This is not information, it's a deduction I make based on their way of proceeding so far.