Given they’ve switched to a magnetic connector on the iMac, I’d say its odds-on that its going to be similar on the MBP.I would like a simple USB-C charger, just like on current M1 Macbooks.
Now they introduce yet another proprietary charger. Yet they excluded a charger for latest iPhones to be friendly to the environment. This is hypocrisy. But if you add ethernet into it, you save an ethernet dongle. Thus, more friendly to the environment? Anycare care to do the math? Nah.
I’m a big fan of having four ports on the the MBP which all support power, so I’m hoping the new one will still offer that option - if there's thunderbolt ports then they obviously will support it.
Design-wise, unless the leaks have all been part of some elaborate double-blind by Apple, its going to be a case of evolution rather than revolution. So look at the current models, square the corners off and you're not going to be far off.
I really hope they give some different colour options though as silver and space grey have been done to death IMO.