Will the next CEO of Nintendo make powerful consoles to their fullest? Since Iwata has passed away?

[Curmudgeon]

Also I think a fair few people might argue that the Dreamcast had better graphics than the GCN simply because of Shenmue, that game still looks great to this day especially through VGA...

Shenmue does look good, but I don't think that means it better graphics. Gamecube simply had better specs and could have handled it. Besides it had many great looking games in its own right. RE 4  looked incredible and I think F Zero GX was quite the achievent at that time. A lot of Nintendo's first party games looked great as well, and also still look good today such as the Prime games. Remember GC also looked better when played through component cable.

Xbox did easily beat all though.