With faith that the Cosmic terminal difficulty will be adjusted from what it is now, I like the idea of making the Cosmic terminals a lot harder.
However, many toons have achievements tied to doing Cosmic level terminals. People will want to do those achievements with out max-gearing the toons they don't love as much. By comparison, very few achievements require anyone to enter a Cosmic Patrol zone (just 1?), and they are not toon-specific. If the difficulty of terminals matches the difficulty of patrol zones, a lot of people will start to grumble.
I'm hoping, after the adjustments, Red Terminals will be at least as tough as Cosmic are on live now, perhaps a bit tougher. If this is the case, could we perhaps allow Red Terminals to count for toon-specific achievements that now require Cosmic?