I am thinking about upgrading to gold. I may even activate Raid Pass. 
Maybe even on both accounts depending on the answers.
I need OFFICIAL Plarium info, not supposition and conjecture.
If I am going to break my strict f2p (free to play) rule then I need to know that my money will gain me the best bang for my $.

At this point in the BP season is there any point to buying Gold Plus?
Since I have already fulfilled nearly every one of the weekly challenges, do the points from each individual task completed apply beyond the bonus 25 days that are unlocked by Gold Plus? That is currently 228 points available. Soon to be 240 plus whatever I finish in stage 5.
Or should I save the $15 to $30 dollars that Gold Plus would cost and order in some pizza?

As a paid feature of a game, I like the basic idea around the Battle Pass system.
I do think it is a bit overpriced though.
Ten people spending $25 Or twenty five people spending $10 you net the same dollar amount. 
But, you will likely see far more people spending the $10  than you will for the $25. 
I'd rather have 50k players pay me $10 than have 1k players pay me $25.