I know that hopefully discussion is here somewhere, but could somebody please succinctly review it for me again? For example, the pedants say you can't say something like, "Hopefully I will have it by the end of the week," correct?
hopefully, you'll find this quote from Strunk and White equally helpful:
Hopefully This once-useful adverb meaning “with hope” has been distorted and is now widely used to mean “I hope” or “it is to be hoped.” Such use is not merely wrong, it is silly.
But as to the S&W quote, there's is contrary opinion from another excellent Michael, namely Quinion:
In its favour, hopefully conforms to a type of construction that is far from new, is a useful condensation …, and is widely used. It is hard to provide much in the way of a list of objections save that it has become a shibboleth of correctness among conservative grammarians and stylists …. For myself, as you have noticed, I use it when it seems appropriate, untroubled by any potential strictures. That’s because I have a stack of modern style guides ranged at my back, chorusing that it is standard English and that it is both acceptable and accepted.