I think that an expansion to Summoning, might also be a good opportunity to bring in some new concepts and mechanics, for instance:
• New, ultra-rare, but very useful/powerful familiars, that can only be used very rarely, but can be much more potent (you can have various other limiters, like not being usable in unsafe PvP, and not being tradable, in order to allow for increased power).
• Group-Familiars, for use in Clan activities, and team Minigames - ones that require multiple people to summon, an maintain, but bring group benefits (like acting as a portable deposit box, and various other convenience things).
• Being able to summon creatures from other realms, briefly (maybe even just for one attack, and with the chance they will attack you, instead), or summon increasing numbers of very weak minions, the longer a fight lasts (but with a penalty to pay, at the end)
• Being able to summon pockets of elemental power (in conjunction with magic).
• Summoning a friend (this is a semi-joke, but I'm sure there could be some way of doing it).
• Familiar-only combat arenas (either without the player, entirely, or with the player only being able to tank), which could involve single familiars, or combinations of them.
• Being able to re-summon a particular familiar (as long as it is cared for, is not allowed to lost all it's health, and you capture part of its essence, with which to re-summon it), so that they can become more potent, over time.
Quite a few of these things are more redundant than when they were proposed in the past, as the effects/benefits are now covered by other things that have been released, but there are still a few things that could be positive, and worked in.
07-Nov-2018 18:06:28