G-heaven just posted this up today. It’s a composite screen-cap from the trailer showing all the skills Summoner is set to have. With a little help from EspioKaos, I’ve put together a basic edit to show the skills in English:
This mostly makes me ponder its viability as a sub-class, given it has a couple of all-round attack and stat-boosting skills. Assuming the All-Attack Bonus skills are percentage based and their numbers are decent, it could effectively work for any class. Classes are a little more than stats though, there’s certain functionality too (such as Weak Bullet for GuRa or Chain for BrGu and so on) and as far as I know it wasn’t explained whether or not a Summoner could use pets without using their Baton weapons. If they can’t, then that makes a large number of these skills fairly useless for sub-classing.
As for what could sub-class Summoner, I’m really just going to have to guess on this one as there’s still a lot not really known. If your pets can benefit from other class skills, melee type pets would benefit potentially massively from Fighter as a sub-class. If there are more tech-oriented pets to be added down the line, it’s possible Braver may be better to take advantage of elemental weakness. If you can keep a pet out without a Baton, then Ranger or Gunner as subs could offer significant burst as well.
Those are just some thoughts, anyway. More hardcore players may have some more solid ideas of where this class could end up fitting as a sub or what could be a decent subclass for it.