So the network needs at least 90% consensus to implement Segwit, which it has now.
Segwit need 95% blocks with bit 1 set in difficulty retarget (two week) period. I dont know if there is consensus for it, but not enought bit 1 blocks in this difficulty retarget period.
Is Segwit going to be finally implemented on August 1?
If there is enought support for SegWit2x then Segwit might be activated. I dont see many SegWit2x compatible nodes so far, so hard to say whether miners lock-in SegWit2x before August 1 come. I would not until majority of nodes are SegWit2x compatible.
If so then the hard fork would make sense.
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Another question; so during a soft fork the coins do not split into separate chains?
If the soft fork is activated by miners then it do not split into separate chains. If the soft fork is activated by users, then the coins can split into separate chains if miners start following both chains.