It is questionable if there will any kind of different summons. Summon Spider was a earth spell, but summoning seems like it is now only done by summoner and if summon does not get the skill, probably noone will have it anymore.
The early videos did show that the other summons will still exist AND Fire had a summon early on that didn't work (and was removed, likely due to the not working part)... and frankly other skills still getting their own summons would allow synergy between the summoner and those skills (In fact one super buff the summoner gets is for a summon... not specifically its incarna)
It would SUUUUCK if summoners were the only ones to get summons.
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Also if we are getting into Diablo 2... I should state that here are vital differences and why the Necromancer THERE had corpse manipulation...
1) You mass killed enemies often in groups of 20 or more
2) Skeleton summons were permanent
3) Golem did not require corpses and was part of the necromancer's moveset.
4) The first turn isn't important at all
5) It was real time
Summoning in DOS is also a great opener. Not for the Necromancer!
If you must have Corpse summoning... How about a buff? A Skeleton summoned on a corpse gets a "Fresh" buff.
