1031 exchange when a 1099-S is received before the exchange is complete

Since everything was completed in one year, the Form 8824 should provide the IRS with all the info they need to account for the 1099-S.

That said, what some preparers will do is still report the 1099-S on Form 8949 using code O to zero out the gain. The idea is doing this makes it less likely the IRS system will think there's unaccounted for 1099-S income because they fail to connect it to the 8824. I don't have any hard data on whether this reduces the likelihood of IRS correspondence, but it's something that some preparers choose to do.

Regarding the asset worksheets, the new asset basically takes the place of the old asset, it's often as simple as just renaming the asset in the worksheet and continue depreciating on the schedule it's been depreciating on. Any additions to basis (like additional cash contributed for new property) are treated as a new and separate asset. So just create a new asset of the same type to start the depreciation on the additional basis. (It's basically like doing a property improvement and the improvement becomes its own asset.)