Yes. With so many fruitless talks about game reform, why not to try something crazy?
Nauruan Model
An interesting hybrid between a presidential and parliamentary government.
Atlasia under Nauruan model: President is both head of state and head of government, but is responsible, just as a Prime Minister in usual parliamentary Democracy, before Senate. The Senate elects President and is free to dismiss him at any moment.
Swiss Model
Under Swiss model, the Federal Council shall serve as a Government, as well as joint head of state. Federal Council (under Atlasia it should be elected directly), shall compose an equal members, and each one shall head a certain branch of the executive power (for example, Department of External Affairs, Department of Internal Affairs, etc.)
The President shall be a presiding officer of the Council, elected among their members for one month term, on some kind of rotation basis (Council term shall be four months). The President is basically a
primus inter pares.
Sammarinese Model
A role of head of state and head of Government shall be vested into a two Captain-Regents, elected for a period of four months and serving jointly. Cooperation between the two co-leaders in making decisions would be very refreshing for the game, IMO.