Lorwolf will benefit from holiday events, like the elemental festivals on Flight Rising- or the Site-wide events on Lioden. Monthly would be great- but not necessary I suppose.
It would be great to have something to look forward to every so often, something to log back into LW for to properly engage and try to get some new collectible items that are limited/somewhat limited. It will be good for the game as a whole. If it comes with new quests and such that would be even better as a break from the monotony that maybe doesn't need to be as thought out as an expansion to the main campaign.