There is much uncertainty about what it will involve.

　　它將涉及的內容具有很多不確定性。

　　Having said all that, I do actually enjoy an element of uncertainty.

　　說了這么多，我確實很喜歡不確定性。

　　If you say something like "this appears to be", it implies uncertainty.

　　如果你說“這看起來是”，這意味著不確定性。