As of now, the officials have not mentioned anything related to its difficulty level so there are very less chances that this will be changed so I would say better to focus on your preparation and try to do more number of sample papers, previous year papers and online mock papers as this will cover all the important questions and make you familiar with the actual paper pattern.

You can get some sample papers from below link as well -

Jee advanced sample papers

Hope this helps!!!

IIT Kanpur will conduct JEE Advanced 2018 completely in online mode on May 20.

JEE Main paper is set by CBSE. There is no such news that difficulty level will increase it will be same as previous years it can be difficult or easy.

You should solve previous year papers to understand the exam pattern and level of questions.

Good Luck!!