The A4 will get 145km/h coaches. BR 103.1 will also get 200km/h coaches in 1965.
The electtrification is a moot point. There are not enough vehicles for it. There is much more depth in deciding to use high-speed track then to electrification.
From my research it seems that at least 10 more locomotives areneeded to make electrification a sensible strategic choice.