Now CCP and a number of players/alliances have acknowledged a issue that the end-game super capitals and to a less degree capital ships have become too easy to acquire and become too common.
To fix this it could be controlled by running costs. Sure there’s fuel costs to jump these ships around, but what I’m suggesting is take this further.
For every hour of operation these ships use fuel equal to 1 unit per 100million tons of mass.
This could taken a step further, where every warp costs the same amount of fuel as the hourly rate.
These could/would add an new fleet role in the form of fuel tankers to resupply capitals on long operations.
Limit number capable of being in fleet actions by reducing cryos mass capacity. This would mean one Titan could use a cryos before it collapses and has to remake. This means large fleets will take longer to form in systems or more cryos generation ships will be required for fast formation.
As part of this set time on jump gates based of mass, to the point it requires 5 minutes for a gate to accept the next Titan, and maybe 1 minute for capital ships.
This would mean fleets would have to organize forward defense groups to protect the other side of gate as caps and supers jump through, same for cryos.
The simplest, but no as effective option. Increase repair costs. Problem with this is logi and nanite paste, as these can do out of station repairs on ship and modules, so this in effect would have limited effect.
This is a rough thought of possible fix to over population of supers and caps.
Looking forward to others constructive suggestions.