1. Will the BTC disappear completely during first week of August?
no, bitcoin is too big to disappear just like that.
and where you invested $100, others have invested couple of millions of dollar, for example miners. and nobody want's that.
2. On what category the present BTC will fall- will it be the soft fork version or the newly forked one after SegWit2x update ? Which will have high demand/price- soft version or hard fork version ??
soft fork is the SegWit2x first step, there are not two different things. it is activating what UASF is looking for.
if it activated there will be 1 bitcoin soft forked from the current version activating SegWit.
the hard fork is another story not to happen for another 6 months after this first step and will only happen if it gains support.
3. Read from major reviewers that BTC will reach the moon after a week after SegWit2x ?? How is it justified ?? For sure the update will take at least 3 to 4 months to probate ?? What's your views on it ?
as i said the first step is activating the same thing as it was planned for years. and if it activates SegWit successfully price may rise again.
4. Is it safe to keep BTC (if bought at high prices), hoping for the best
? Or it will be a huge loss to keep btc since you are very sure that BTC will not reach 3000 $ again
?
5. Will BTC go to the price it was before i.e. 5 months which later went 4X times ??
stop looking for making more $$$