In long term, gen2 chips cannot be postponed any more, or AM has to be converted to non-mining company totally. If currently the design and testing of gen2 has been finished, then there's no reason not to mass produce it. Even they are not sold well, self mining with them are still profitable. Suppose the watt/G reduce to 1/3 of gen-1, the self-mining capacity can increase to 300TH (from current 100TH), with the same power supply limit.
I think what you said makes a lot of sense and I agree with it.
But additionally, I would also consider another possibility that if the price per GH is right (or cheapest), for those who at least live in countries with very cheap power, then you could imagine a scenario where Asicminer's chips, even though older gen and using much more power, still may be the most attractive option for some long-scale and hobbyist miners.
Sure the watt/G is hugely important... but as well, price per gh is also paramount. Maybe I'm confusing things, but just saying, it is conceivable to me to have a successful product of 130nm asic miners if the make up for their shortcomings in selling price. Finally, rushing to market with a gen 2 at this point -- if you have a proven gen 1 product that you can economically produce and sell -- may not be the best plan. Instead, getting a lab set up, and hire some smart-folk, and making a great 2nd gen chip instead of late-coming average gen 2 chip would be a better alternative.