I don't expect a good performance from West Indies in Test format. There is no doubt that this team is very good in T20 format. The team's performance in ODI and Test formats has been erratic. It is their luck if they play well in Test matches.
A few days ago we saw England losing all three matches in the 3-match Test series. England won each match easily. South Africa could also have won the first match against the West Indies, had the match not been delayed due to rain. In the second match, I consider South Africa as the favourite. The chances of West Indies winning are very low.
This is why I have been advocating for a three tier division in test cricket. It can be implemented like this:
Division1: India, Pakistan, Australia, England, South Africa, New Zealand
Division2: West Indies, Ireland, Afghanistan, Sri Lanka, Bangladesh, Scotland
Division3: Zimbabwe, Netherlands, Nepal, Namibia, USA, Canada
There will be a total of 18 teams. Teams should face other teams within their division 80% of the time, while 10% each should be spend on playing teams from other two divisions.