I like Lowry. Now. But I'm not so sure he will age well. As a smaller, scoring-minded PG reliant on quickness, who is somewhat injury prone, I'm not a fan of handing him a pudgy contract.
I would start shopping him now to maximize his value, seeking a blue chipper in return, or to dump a guy like Fields or Amir with him. For teams interested, he offers two playoff runs at a cheap salary. He's our best player, but he's not elite, and doesn't fit my vision of a rebuild.