I really like the idea of 'Command your own Standard'. I maintain (at low levels of activity) four Commander decks right now, two of which,
Radha and
Wydwen, I will probably keep as Eternal-Commander decks because I enjoy their high power level.
My other two, Numot and Teneb have languished for a while, and I was waiting for this summer's precon Commander decks to reinvigorate them (each of my decks being aligned with a 'wedge' that will get a precon). However, I'm thinking about enforcing greater restrictions like 'Command your own Standard' on Numot and Teneb, maybe relaxed to also allow new cards from the precons (including possibly a different general for each). I don't think I'll limit myself to sets that were all legal in a Standard together, but instead to any two blocks plus a core set. Additionally, the blocks and core sets I pick for each should not overlap.
I originally built Numot to get Swans of Bryn Argoll and Niv Mizzet, the Firemind together, so Numot could be Ravnica + Lorwyn + [core set yet to be determined, though M11 looks good, thanks for Lightning Bolt and Inferno Titan]. I'd have to think about which blocks to use for Teneb, at first blush I'd lean toward Odyssey thanks to the

and mono-

themes, and Zendikar, which would have fatties like Iona, Terastodon and It That Betrays for reanimation (if I stick with Teneb instead of some new general from the precon).
Edit: Links.