I don't expect much this year, though hopefully we see development and improvement with flashes of full potential (both Love and the new players/team as a whole).
I think we can get back on track on offense if Love is the guy and we draft well on offense/add new offensive players this year and next. Those are two big ifs though.
One thing that does make me feel better about the future is that I think MLF is a good offensive-minded coach, and the scheme/type of offense we run is quarterback friendly, plus we have and now prioritize a good Oline along with a running game (So, I don't think that Love needs to be as good as Rodgers or Favre). However, we still need to prioritize offense in the next couple of drafts as well as make good selections. We also obviously need Love to be good or quickly find his replacement.
If we want to win a Super Bowl in the future, we need to get better as an organization on defense. Both the 2011 and 97 teams had great defenses and I think defense has been a major reason we only have 1 Superbowl each under Favre and Rodgers. While it is probably hard to be elite on defense all of the time, I think a good coordinator along with good drafting/development of defensive players will get you defenses that are almost always at least decent, very good most years, with forays into elite territory.
Not sure if Barry is the guy, I have my doubts. I think we are talented against the pass and at the back and middle of the field, but we need better run stoppers and to get better up front on the defense.
As for how long it takes us to get back into winning, I am thinking 1-2, maybe 3 years if Love is the guy and longer if Love doesn't pan out.