In Portuguese, the translators decided that uppercasing all of the hat blocks would be their sin of the day.

in the next build

In case you need your heart broken, there's evidence to suggest Scratch Team were seriously considering allowing blocks to placed inside of variable dropdowns.

Evidently, that fell through. Something didn't work.

Global custom blocks have been released for Unsandboxed.

Full changelog in the article.

does scratch think im knocked up or something

An update has been released for Unsandboxed.

Changelog is in the article.

.

in the next build

So I can say for certain that Scratch 4.0 will depend on modern Blockly, which for now is being held together by the old GUI code from 3.0

.