With the close of the 2018 season and all next year's drivers practically confirmed, I think a new thread is in order.

The Contenders:
(movers in italics, newcomers to F1 underlined)

Mercedes: Lewis Hamilton / Valtteri Bottas
Ferrari: Sebastian Vettel / Charles Leclerc
Red Bull Honda: Max Verstappen / Pierre Gasly
Renault: Nico Hulkenberg / Daniel Ricciardo
Haas Ferrari: Romain Grosjean / Kevin Magnussen
McLaren Renault: Carlos Sainz / Lando Norris
Force India Mercedes: Sergio Perez / Lance Stroll*
Toro Rosso Honda: Daniil Kvyat / Alexander Albon
Sauber Ferrari: Kimi Raikkonen / Antonio Giovinazzi
Williams Mercedes: George Russell / Robert Kubica

* presumed

The Dates:
Code:
Date	   	Grand Prix	Venue
====	   	==========	=====
17th March	Australia	Melbourne
31st March  	Bahrain		Sakhir
14th April	China		Shanghai
28th April	Azerbaijan	Baku
12th May	Spain		Barcelona
26th May	Monaco		Monaco
9th June	Canada		Montreal
23rd June	France		Le Castellet
30th June	Austria		Spielberg
14th July	Great Britain	Silverstone
28th July	Germany		Hockenheim
4th August	Hungary		Budapest
1st September	Belgium		Spa
8th September	Italy	 	Monza
22nd September	Singapore	Singapore
29th September	Russia		Sochi
13th October	Japan		Suzuka
27th October	Mexico		Mexico City
3rd November	USA		Austin
17th November	Brazil	    	Sao Paulo
1st December	Abu Dhabi	Yas Marina
Predictions? Hopes and fears?