Interesting. I read the same article and came to a completely different conclusion.
The reactors are shut down for their periodic refuelling outage. In most countries, this lasts for as long as it takes the refuelling and maintenance work (which can't be done during power operations) to be done, and then the station is restarted, usually for an 18 month cycle.
In Japan, things are different. They require a complete revalidation of all systems before the government gives permission to restart. This can take anything up to (pre-Fukushima that is) 5 months! Quite why they take so long, when nearly every other country in the world, who operate reactors, can get the same inspections and validation done in 1 month is beyond me.
Currently, the IAEA is in Japan, double checking the stress tests that the Japanese have performed on the Ohi unit 3 plant, prior to the plant restarting.
I expect more plants will restart in the coming months.