There is much uncertainty about what it will involve.
它将涉及的内容具有很多不确定性。
Having said all that, I do actually enjoy an element of uncertainty.
说了这么多，我确实很喜欢不确定性。
If you say something like "this appears to be", it implies uncertainty.
如果你说“这看起来是”，这意味着不确定性。