I think most people are expecting a second general election because, well, that's just what happens in minority governments. They're weak and unstable (I'm going to milk the parody of May's slogan for all it's worth...). Certainly it's pretty obvious that May isn't going to call an election by choice in a hurry.
One of the big winners in this whole mess is the Fixed-Term Parliament Act. The Tories had in their manifesto promised to repeal it, and May had shown it contempt in even calling this election, but I expect it's going to stay. *That's* a way to provide stability, not calling snap elections for a cheap shot at political gain, even if it did backfire spectacularly this time out. Obviously the mechanism for a no-confidence vote is important, but I suspect that the Act will stay in place and from now on governments won't be so easily able -- or, more to the point, willing -- to call early elections in future.