I'm not sure what's the idea behind "All Ideas" drop-down menu on top-right of the Ideas block, perhaps that could be the right place.
It looks like so far we have two statuses
Under Review (as it was explained "Reviewed - Our team has read the idea" - What are the possible statuses for the Ideas); and
New Idea (other words MS team didn't read the idea).
I hope more statuses will appear in future and it will be useful to check ideas which are declined; or accepted and in work; or were implemented.