For me to be an early adopter again, it needs a strong line-up at launch. A strong line-up in the "launch-window" isn't good enough, I have little confidence they won't get delayed, so I'll just hold off.(Not a bad thing at all though, since the games are always good in the end.)
In general:
1. Good games. (A given)
2. Fun. (Likewise)
3. Just keep the Nintendo magic, no ridiculous DLC, no expensive online system (I'll pay if it's of a high quality and delivers value)
4. Try and get some sort of third-party support.
5. To keep their games output at a good level, I'd like them to acquire some bigger companies who are on the rocks (Capcom, anyone?), this would get their franchises exclusive and would help sales.
6. Capitalise on the new franchises which have found success this generation, or older ones that have had newfound success (e.g Tomodachi Collection, Splatoon & Pushmo; Kid Icarus & Fire Emblem). Don't milk them, but keep the momentum going.
7. Revive and/or reboot old franchises which need a new entry (Ice Climber, Balloon Fight, F-Zero)
8. As for price, if NX ends up being a 3DS replacement, $250 (Australian) is the max I would be happy with; less would be preferable, but the 3DS XL is still $250, so I can't see that happening. If it's a Wii U replacement, $300 is the sweetspot, $350 the absolute max. If it looks like being a fusion console that replaces both, I'd pay up to $450.
