One drawback of the current LFRP system is that it doesn't distinguish between player's intentions and whatever happens to be occurring. The LFRP list looks the same whether you're passing through an area or hunkering down for a month looking to hold a tavern down for RP.
If possible, an option for players to note their intentions could help promote RP gatherings outside of the basic Vallaki hub.
For example, someone who is intending to stay and RP in another town for several days could note this in their lfrp profile. Then people will know it's worth the trip up there to make some RP happen, rather than thinking maybe the person is just passing through.