My console pokemon RPG idea which will never be made. Using only first (maybe second) generation pokemon. You are an aspiring young trainer, who gets his first pokemon. You roam about an open world, with no random battles, but the pokemon litter the landscape. Leveling is faster, so you don't have to butcher every pokemon you see just for EXP. More emphasis is put on trainer battles than poaching.
When you enter a pokemon battle, instead of being a trainer, you get to "pilot" the pokemon in real time, rather than turn based. You have an HP bar, and an energy bar. Several of the buttons respond to attacks, others to evasive movement, or special movement, such as flying/tunneling/swimming. Each attack, evasive maneuver, and special movement uses a unique amount of energy relevant to the movement, or power of the attack. Also, being on the receiving end of an attack will lower your energy meter in relation to how much damage is dealt. Running out of energy makes your pokemon move slower, and very vulnerable for a brief period of time, of course.
As a trainer, you gain reputation based on your willingness to participate in trainer battles, gym battles, etc. Refusing battles results in gaining a "wimpy" reputation, where actively pressing everyone for a battle will make you appear bloodthirsty. You can get other types of reputations as well, such as being a breeder, poacher, or pokemon thief.
But doubtful that Nintendo would change the cash cow to improve the actual game, against just pumping out a new generation with minor changes.
