No, i looked at the video before commenting. Lightsaber tips were always rounded until Episodes 2 & 3 (they were old school in episode 1) , when the pointy option kicked in. It's just something i can't stand about the prequel sabers.

As for Rebels, then i can't see why that would make you worried about the sabers in episode 7. Rebels designs are heavily influenced by the classic Ralph McQuarrie designs/ concept paintings. The style of the sabers are taken directly from those, as Dave Filoni has himself said.