In the 1990's I was a huge WRC fan. It is what got me into Subaru as a teenager. I love watching it in those glory days with Mitsubishi, Subaru, Ford, Toyota and Peugeot (later on) battling it out. It was so competitive and great to watch.
In the 2000's the series really died off with Mitsubishi, Subaru, Toyota and Peugeot all leaving the sport. For a few years now it has really just been Ford and Citroen running around.
But now with the new regulations that include restricting engines to 1.6L, it appears manufacturers are ready to return. Mini is already set to come into the series and now VW just released their official Polo R WRC that will also see battle in WRC. Rumour has it Skoda will use a version of the Polo Chassis and also enter.
A big reason many think Subaru is 'shrinking' the next WRX/STI and giving it a 1.6L Boxer motor is to also return to WRC.
Ford, Subaru, VW, Mini, Citroen and Skoda battling it out at the same time would be awesome. Also, a bunch of 1.6L 300HP engines could also find their way into various products.