Its still possible to farm tokens, but it has got harder to do this season.

I think I've managed to farm around 500 since the start of this season in total. It does look like Nordeus are tightening it all up though and I wouldn't be surprised if in the next few months farming for tokens becomes a things of the past. I think the next logical step from them looks like they will remove the "watch videos for tokens" offers and probably replace it with "watch video for packs" instead.

I'd advice those that can farm to do as much as time can allow now and to try and save as many tokens as possible for later as I do think the good farming days are now behind us. Time to store for the future while we can.