• It's fixed from 2018 JEE will be online.
• As per the rotation rule JEE advanced 2018 should be conducted by IIT Kanpur.
• Please be clear that no decision has yet been taken on introduction of short answer questions in JEE Advanced.
• One aspects which differentiate JEE from any other competitive exam is it's pattern, so don't expect instead accept.
• To address the fear or difficulties with accessing computers which rural candidates may have in taking the test online, JAB has set up a sub-committee to explore options of holding mock exams a week before the actual test so that rural candidates get acquainted with the new test pattern.
• It has been proposed that if necessary, these candidates from villages and rural areas will be allowed to appear in mock tests at the selected exam venues. The sub-committee will be set up under the guidance of IIT Kanpur, which will conduct the next IIT-JEE (Advanced).
• Till this year, examinees were allowed to take a copy of the optical response sheets back home as proof of their appearance in the exam. From next year, the computer will record the responses and a soft copy will be mailed to each candidate's registered email.
• Clear all your concepts, you will perform well irrespective of new rules.

ALL THE BEST…

There is no such official notification regarding change in pattern of the exam.

IIT Kanpur may introduce changes in test pattern. IIT Kanpur, which is the exam conducting authority for Joint Entrance Examination (JEE) Advanced 2018 may do away with the existing exam pattern which carries only Multiple Choice Questions (MCQs) in the national level engineering entrance examination for IIT admission but nothing is yet official.

You can read the below article for the information

JEE Advanced 2018: IIT Kanpur may introduce changes in test pattern

Good Luck!!