It is not cake walk; but at the same time it is not extremely difficult. It is something for which one needs to plan and strategize.
You must attempt mock tests as per the pattern of new BITSAT. Also since new pattern has less number of questions, it might be expected to have relatively harder questions this time. So one must practice accordingly.
Further, you must aim for reaching to the level of bonus questions. That can be done only if you attempt the paper with an appropriate speed.
Logical reasoning is this time having 20 questions; far more weightage than last time. So you must practice for that session a bit more.