| i'm sure we'll see more in the DMG2, and maybe some more tossed around in Dragon Magazine at some point. But, you are right, as of now, there is only a small selection.
of course, how much you use templates depends on your group/game style/prep time/etc.
since the focus for the edition is quick prep, as dacosuave said, i don't think templates are a huge focus for this edition, which would explain the limited number.
(for me, personally, it's fine since my group's game style and my prep time limit my need for templates) | 
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