Add a task for soloers to find a treasure in a certain zone with some clues to follow. It's a good way to bring soloers in a certain zone and move them around, not camping one spot only like a gate is nowadays. Might consider the treasure task to be seen by only solo people, so grped players dont see it, or make it visible but with some information hidden. Just had this idea and i think it would be interesting, surely it can be more well thought out by you guys. Cheers!