Man, this wont work out.Atari has no IPs whatsoever(only relics from a lost age), no internal developers as far as I know, comming into a market that already has 3 competitors, having no major money bank for unforeseable events, as far as I know, and so many more reasons.
This will be ouya all over again in my opinion.
My (locked) thread about how difficulty should be a decision for the developers, not the gamers.
https://gamrconnect.vgchartz.com/thread.php?id=241866&page=1