I applied reinstatement with my Athabasca transcript, A-,A-,B and one more course is in process.
I am Mac student from year 2009-2011.
For now, I am applying to leave Canada for three months at June 15, and Mac will reply me on July. Therefore if I get any bad news from Mac, I should need time to apply any other university or college.
My question is
Is reinstatement nearly-guaranteed after a year? and how about with my transcript?

1) nothing is ever guaranteed. Almost all faculties took more students than they would have liked last year and are really being pushed for spots.

2) Need to know more info. I.e. the process may be different or easier/harder for different faculties.

3) you should be contacting an academic advisor. Only they truly know the numbers.

I think a huge factor is the reason you were kicked out initially and what you have done to fix the situation.