I have an idea about new kind of servers, which I would call for example "Golden Worlds".
It would be servers, where there is a monthly fee to play on, e.g. 12-15 euro per month and on which would already be active Travian PLUS and crop + resource bonus. You could of course purchase more gold if you wanted, for other benefits like NPC trader etc, like it is on any other server. Main principle of this idea is that every player has an equal chance and fair conditions, because everyone would have to pay a monthly fee to play.
This should also limit multiaccounting, as paying several accounts monthly wouldn't be that painless for many people and also getting multiple credit cards to pay those accounts wouldn't be easy.
There would in my opinion also be more active and experienced players. Unfortunately, there would also be far less inactive villages to farm, but one thing that could be done about that is adding something like NPC villages to farm on, with some new rules for them, but I would leave that for future development.