You do realize the preferred shares the government owns can be converted to common, thus diluting current shareholders, right? The only ones buying those preferreds from the government will be TEPCO itself. If you honestly think the government is going to sell the preferreds into the open market, you're completely clueless.
It's pretty clear the D.A. didn't move forward with the charges because of the 1961 law. All parties involved seem to have accorded a true with regards to not mentioning it. Looks like this civilian body doesn't care if the law is invoked. Not only will the executives win the case (wouldn't be surprised if a judge grants a motion to dismiss), but I suspect TEPCO will eventually be included back in that index sooner than later.
If anything, calling in outside authorities to assess the plant means that they expect it to pass inspection. That would give them justification for starting up more than 2 of the reactors, as what was initially planned. The longer it takes to restart, the greater number of reactors they'll be able to bring online at once.
It's surging because the decline in price of LNG. From someone more knowledgeable than me, it's going to raise net income this year to around 800 billion yen. This isn't retail speculation, it's a lower cost of revenue.
The JP gov isn't reducing their position. To do that they'd have to convert their preferreds into commons. You have zero idea what you're talking about.