Oh I agree, definitely

. But that's part of the attraction too.
Belgium will be here to stay for another 3-4 years imo. We have talented younger back ups for most positions. The only real problem I see for us in the near future is Hazard's age. He'll be 31 at the next World Cup and he does rely on speed, so I don't know how well he'll hold up. There's no young player who is close to as good as he is.
For Croatia I think this was most likely their final chance of WC success. Modric will be 33 soon (though you really wouldn't say so at all imo) and Mandzukic is 32. Rakitic is 30 and Perisic is 29 (ffs Croatians really age well), so even they probably won't make the next World Cup.