The practices r different and some may be illegal e.g. Tantra. IMHO, The paths are different and likely the goal is different. The teaching of Buddha is already timeless.

It like a completely reverse timeline. Where do you get that?

Tantra Buddhism is not here. Zen is not here. Leave the traditional Buddhists as it is. It is less and less as the clock is ticking.

OMG in short a big NO for your chosen topic. "re-shape" is just showing not understanding at all