I would like an FPA, mainly because I think the powerful hardware will give a lot of potential for improvements over the MP formula. I'm thinking about larger/more interactive enviroments, better IAs. I would like also a new 2.5D adventure ala Super Metroid but that is imo equally achievable on 3DS.

This is exactly what most Metroid fans I know HATED about Fusion, and even Zero Missions more hint-like system. A large part of Super Metroid's lasting appeal is entirely how much it DOESN'T force you to do to advance.

will get this for sure, i love the series.

You'll have Metroid Prime 4 as a launch title.

why must Metroid be in either first or third person view exclusively?
Most PC games have been able to accommodate both for years...

that's a dig at Other M, isn 't it?

Don't  forget that the current metroid troubles come from a lack of clear view or gameplay. Simplicity like in Mario or Zelda is key to sell big to an audience.

Both Mario and Zelda give you the option to switch to first person view on demand ,although you can't move in that case. At least have that option in Metroid too. Either switching from first to third occasionally or vice versa could be really useful at times, IMO.

Once again, this is something I thought EO2 handled extremely well, in the "scanning" sections for example. Obviously having the ability to play from both perspectives all the time was made easier in that game because of very few collision concerns, but if you just think about the mandatory 1st person segments in that game, with the rest being played in 3rd person, it works quite well, and actually makes sense.

If Nintendo has any sense, they would reboot Metroid as a clearcut space-shooter (a shooter in their way), with the scanning/backtracking/second paths optional as secondary objectives - Something like goldeneye. That works for a lot of customers. Shooters and semi-adventurers alike.

Like i wrote before: a clearcut gameplay style is needed. Metroids audience is just not there anymore. The few ones it had, are going away. 

TBH, l would have liked to have Samus on screen a bit more often, preferably with me controlling her and performing agile acrobatic moves freely. In particular, platforming in first person, while executed well in those games, didn't feel as eIegant to me as in the 2D games and felt like somewhat of a step backwards for the series in my eyes. Now that l think of it, combat seemed to suffer from this issue as well. There is something very empowering to the player about the way Samus moves in the old games, which I think Other M managed to get mostly right.