I'm gonna miss Gus

Even though he had to go - he was such a great character. Although this season ended in a way that could have wrapped everything up, they also left many questions purposely unanswered as fuel for next season:
What became of Mike?
Did Ted die (I'm sure he did), and is Skyler aware?
And what about the $600,000 check made out to her the day before he died?
Will the hours-long video of Jessie cooking blue meth in Mexico be viewed later by someone in the US?
What did the doctor REALLY tell Walt at his checkup?
And, most important - Who was Gus REALLY, and why such a big secret revolving it? I'm sure his death will, in some way, reveal this, and cause further problems for Walt and Jessie