I am going to be suggesting a few things in this so hold on and bear with me.
New Quest: On the Kanto server I feel that the hunting feature is largely unknown and underappreciated by starting trainers. I feel like a hunt related quest should be added to explore this feature of the game which could help many beginning players.This quest could be accomplished by completing one (or more) hunts throughout the world. A small quest could also be added to visit the safari server as well. Another quest related to brewing potions could also be added. There could also be a quest line to beat a gym/the elite 4 when added. (sorry there are a few things under this subtitle)
New Mod Server Side: This is more just of just a personal recommendation. I feel like adding the headcrumbs mod to the server which drops player heads upon death, as well as mobs, would make finding and collecting them a fun side task. Also a mod that would make storage of items easier like storage drawers or iron chests would help (I know this unlikely).
Nether: Another extremely unlikely one here. The creation of a /warp nether where mobs have the ability to spawn. This would give players a fun incentive to make weapons and armor as well as allowing for the completion of many advancements.
Wondertrade: This has been driving me nuts forever. When the wondertrade reminder comes up for the number of shinnies and legends it still says the command is /wondertrade instead of /wt.
Points in Safetrade: Subtitle speaks for itself but the ability to give points in Safetrade without the risk of being scammed would be nice
Thank you for reading this sorry it is so long, but I have been on the server for a little while and was recently told to come on here and write down some things i have observed and though there are quite a few things here and probably more that I will think of the server is one of the most fun I have ever been on with a great community and I cannot wait to see what the new year bring.