It does not need to do that at all, ASIC's are specific to a certain algo in regards to hashpower/watt, so no ASIC manufacture can make a ASIC chip that is efficient at all 16, they are vastly different for a reason...
X11 has 11 different algorithms in it, but the original Baikal miner was quite efficient at mining X11 and also high efficiency at mining several of the component algorithms as a "seperate" thing.
FAIL logic.
So assuming the x16r came out a month ago and bitmain / Baikal want to asic it the timeline may be 4-6 months out at best.
But if x16r had a fork ready now and could fork in:
5 months to x20r
then fork in
5 months to x24r
then fork in
5 months to x28r
asics would be fucked