Looking forward to the future of my channel and new videos! Thank you all for your support.

I think you can certainly pivot the channel to whatever content makes you happy. I am constantly testing new waters on my channel which likely hurts growth but I would rather keep my myself interested than burn out on a niche to appease the algorithm at the expense of my happiness.

If you're going to be shifting to a lot of new content, I would make an "Everything else" channel. I don't mind a few off-topic videos, but I prefer scrolling through your videos to find interesting code-related topics. I'm not sure if it would be the same blended in with Harley videos. In any case, thank you for everything you do. Your custom WordPress plugin tutorials have helped me multiple times and I would subscribe to your other channels as well.

I think you should make new channel for podcast and other stuff

Pick your niche and run with it. My opinion is to not commingle differing stuff. This channel is branded as a WordPress channel. I'm thinking you can make a video a week by just covering something you are doing with KZfaq. Now having said that I think people might like to see you as a person so some motorcycle and some camping, seeing your dogs was cool. Sounds like you need multiple channels. Your heart will provide the answer - what are you passionate about?