I think Lidl-Trek wants to become a bit more german. In the german besenwagen podcast they said that they even consider moving the headquarter to Neckersulm (= headquarter of the company Lidl) and that Lidl bought shares of the team.
Yes, I heard this podcast, too. I think Welsford and Adria are leaving. I don't know about Koch, Mullen, Maciejuk and Palzer. I think most of them are staying.
I think he would be fine with the Giro. He doesn't seem to need the spotlight of the Tour. He just wants to do his best possible performance. He could do that at the Giro, too.
But you never know, perhaps he is starting to like it. :D