These cards will be mostly made for mass market pre-build PCs. I'm betting only the 1660 and 1660ti are available for purchase and the 1160 will be reserved for PC manufacturers. It would seem odd to have three lower-level mainstream cards.
It could also be plausible that the 1160 won't be available in the US or North America. The 1160 may be a budget European option since cards are more expensive there.
unless really need to, I would not buy a new GPU card at this time. I have been thinking about upgrading, but I will probably wait until AMD has come out with their options too and they all get tested. I would hate to throw my money away at this time.
This is just becoming more and more ridiculous, instead of announcing GTX 11/16 besides 2060 at CES they'll release lower end products to semi DOA market over the hills filled with either continuing GTX 10 owners (not disregarding previous generations), RX/Vega owners and those who bought RTXsses. Nvidia clearly overreacted with ray tracing failure and should've instead shifted release dates to late Q3/early Q4 2019 to grant people some break over this shitloaded fiasco Nvidia has been since last year RTX annoucement.