i hope they do NOT drop the mag safe from the pro line. That would be a major disappointment!
Magsafe won't be needed. 1) the power efficiency improvements will mean you do 't need to be plugged in all the time and 2) the machine will be much lighter - MagSafe would need a major redesign. I suspect it will be in the form of a magnetically separating cable plugged into USB-C port. The cable tripping days is a problem from 10 years ago and is largele solved. And if you really need to sit beside a wall all day crunching numbers, why aren't you using a Mac? Faster and higher performance.