This is just my opinion and does not express the views of others players or any other living or dead humans or cats.
So with today's update what can the summoners expect:
Could we log in and have one summons as last week since with two summons the servers still had some lag. Maybe this summons will be 1/3 cat, 1/3 reaper, 1/3 bear, of course with this change there will be not be any stat increases. Perhaps we will no longer have any summons but we will be able to summon a pebble and throw it at mobs or enemies, along with the new skill "duck and run" and throw a paper airplane at your enemy.
Automated parties were still using summoners last week, so perhaps when we log in today all of us will now be level one dwarfs to deter the non-legit players from creating summoners. I do hope if this happens we can keep the "throw a paper airplane at your enemy skill. :)
Class balance - well some summoners adjusted to the new summons and still beat some in oly or 1v1 pvp so back to changing us all to level one female dwarfs.
All above is said with tongue in cheek.