Wow, happy to hear you’ve been enjoying makecode on microbit and arcade! There are actually two things you might be interested in then - there is a new microbit V2 that was announced a few days ago, along with this connector so you can run arcade games on microbit v2 https://makecode.com/blog/microbit/arcade-shield.
For replies running out, I think thats just a forum thing based off accoutn age / reply count - it’ll probably allow you to reply again in a few hours / after a day.
(Also, yes, we are planning on having more game jams, though I don’t know when / what they will be based off quite yet!)
Let us know if you run into any other issues / have any other requests! And also, your english is great, you have nothing to worry about there!