Do you think gambling companies will get to have enough money, powerful connections to manage what even the tobacco industry failed at, complete domination of advertising in every sport that no country would find a majority in their parliament to even issue a draft law against it?
In all honesty, I think that this is what is going to happen.
They are not the majority now and if any country wants to act, this is the right time to do so. They haven't bought over the parliament. If they delay, well that's is what is going to happen.
Though this is unlikely they may find a way to move into the prediction market.