yes and i think there should be more and higher upgrade centre options in general.  You could probably think of a lot of maximums that could be increased that people would totally pay for.  There would be a lot more for these people with 60k points to spend on haha.

Possibly a guild upgrade could allow for more concurrent raids.  Possibly both guild upgrade and player upgrade.  The options for less turns/less time in raids could be a guild upgrade/upgrade centre.

In general I think the guild system should be overhauled as well.  Should include a built in map for leaders to build from the guild interface.  Then, there should be a guild bounty board that populates with random monsters that people can claim and do.  Should be a guild check in bonus, and a loyalty streak.  Guild points from being active in all guild activities.  Should be a guild shop.  Guild donations should give guild points.  Should be buyable raiding rooms and buyable training rooms.  Last but not least rooms that any guild member can buy through the guild and get to through the guild hall interface, that they can build anything in via the same interface as the world builder.  This should all be buyable with credits and/or points.  The guild rooms building should be f2p but with the same point costs, so that people may get aquainted with the world builder maybe buy pp to do that.