You seem to be confused

If SegWit2x gets accepted there won't be a hard fork on the 1st of August or soon thereafter. If this proposal is accepted, only the SegWit part will be activated in August and it doesn't require a hard fork. It is only in November-December the part which requires a real hardfork (2M blocks) will get activated. But it is yet too early to tell whether the SegWit2x proposal will get accepted in less than a week. If Antpool revokes their vote (which is quite possible), there will be no SegWit2x nor pure SegWit for about a year to come. Basically, we will be back to square one