No, don't give up new ideas! Just have to understand the implementation will take time…
I think, the newest idea with the pc cases which went in practice is the horizontal position of the mobo… - I mean, it's just a re-invention… the idea was present from the beginning of the pc history (just think about those cases from below the monitors), but then the tower-like cases took over… and now is back! :cool:
Mostly in the mini- and micro-atx section, but we also have the CM HAF XB style, which fits even bigger mobos too… - and there you have already a new way to cool your system, without even re-designing the mobo...