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Mexico replaced by New Zealand is the ideal.

We don't need Mexico and Argentina on calendar in same time. Very similar rallies.

Criminal is New Zealand not in.

So,

Monte-Carlo Tarmac-Snow
Sweden Snow
Mexico Gravel
Tour de Corse Tarmac
Argentina Gravel
Portugal Gravel
Sardegna Gravel
Finland Gravel

As i said on Cyprus thread: Cyprus and Acropolis only prove one thing, its places are in WRC. Rally use to be brutal to cars and drivers.

Acropolis!

My guess of calendar:

Monte-Carlo
Sweden
Mexico
Tour de Corse
Argentina
Portugal
Sardegna
Croatia

In ACM web site have dates to 2019 and 2020: http://acm.mc/en/automobile-club-de-monaco/calendrier-des-epreuves/

87th Rallye Monte-Carlo 2019 [January 21-27th]
88th Rallye Monte-Carlo 2020...

January 22-28th - > Rallye Monte-Carlo
February 15-18th -> Rally Sweden