Just finished it all now, the last arc with Yoda made a great ending to the show, despite many plot threads still being left open due to the abrupt cancellation.

The first and last arc make a huge way in filling in the gaps when it comes to big parts of the PT, while the second and third arcs are just a continuation of the series.

Would have been nice to see the other two planned arcs for season 6, the last Maul arc (which is being adapted into a comic book of course), and supposedly an arc involving Ahsoka.

I'll discuss my opinions on this season more later, as I don't want to spoil anything for people here on accident.

Somewhere I know, is a great version of the PT amongst TCW and Rebels episodes, that could substitute until some sort of remake or re-edit of the PT is done by Disney. Just need to find it.