Okay, I haven't heard or read that so let's hope it's true!
I'm not saying it will end on Sunday, I'm just saying it might since we can get all the achievements of Act 1 on Sunday if we wanted and did everything every single day since the start of the plot.
Also, unless you bought anything that has a limiter, like the Void Blade or the Thundersticks, you will have to keep track of it yourself. All you know is, as said above, how many points you've already spent.