Do we really want move villains/heroes, being "he appeared in that episode of AKA Jessica Jones, but with a different actor" ?
Something tells me we won't have to worry about a threat to Jones being something an Avengers movie will have to worry about, so that strikes out the villains. Villains don't always have to be of the 'super' variety, they could make up many depending on the story necessities.
And once they have their main cast together, anything extra they want to ad that will also appear in the movies will be well planned out.
I can't see this backfiring at all, it seems pretty straight forward to keep track of.