On the topic of the number of summons, I think it would be an interesting idea to incorporate a way to collect and slot in 3 from the ones we have collected. Maybe have some kind of special trial that summoners could do to gain them and collect them in a book of summons or something and then allow us to choose which 3 we want to use and a way to change them in and out. It would allow for some kind of player expression through character and job design but this would also give summoners more to do than other jobs so it would never happen. There is always the rumor of 8.0 changing up all the jobs and really focusing on identity so who knows what will happen.