1. If a golfer doesn't succeed on the World Tour, will he be ineligilbe next year?

He would revert back to the tour from where he came.If you took the top 75 as automatic ,No 76 would qualify for the World events on his native Tour ,but not those outside. Simple really.

2. Will there be a 36 hole cut for these events?

Of course.It would be the same tournaments played now, but with higher purses and more open fields, improving the quality.

For example, take the Doral Open, the filed would be top 75 in world rankings , plus top 75 of the remaining players on USPGA Tour,plus sponsors invites ,givng a total of 158.

The Irish Open would be top 75 in World ranking s plus next 75 in European rankings ,plus sponsors.

With three majors and more events in USA , there would still be some bias to USA based players , but that is realistic.