Overwatch competitive points reward at season (4) end

As you probably already know, you get competitive points after winning or tying a match. When you get 3k of those CP you can buy a golden weapon.

When a competitive season ends, you get a reward based on your rank. The thing that I want to know is, possibly with a link to an official thread, if this reward is based on the season high or the current rank that you end with.

Example: I'm a master right now (between 3500 and 4000) and if I end like so I should get 2k CP.

If I drop under 3500 and go back to diamond (since from master and above you can actually derank) will I still get 2k or 1.2k CP?

The Points you get are based on the Season High. You can be 1k now, but if you were 4500 at one point, you'll get the rewards for 4500. (old source)

The only difference from old seasons is you need to be Top 500 at the end of the season (source) to get the top 500 rewards, whereas previously you only needed to have been in top 500 at any point in the season. I'll post resource in a second.

They haven't made the announcement yet on the forums, so there's no official statement on that but it is widely known in the community the above to be true. Ill update my answer with the Announcement thread when they post it in the forums.