What about summmer? Honest question that I haven't seen discussed enough to form an opinion on. Flu and the common cold are drastically curtailed by late spring and it seems reasonable that coronavirus spread could also dramatically slow until the season starts again this fall.
The only answer you're going to get out of someone that isn't talking out their ass is: hopefully it will be curtailed by summer, but we don't really know. And keep in mind that summer in some places is winter in others.
There is data on the flu and COVID-19 from parts of the world that are in summer vs. winter. As the situation evolves further this data should enable making a better educated guess:
There are cases in warm places like Singapore and Thailand. Yes, they think transmission could be slowed in warm humid weather, but most warm places in the world have air conditioning.
A friend of mine recently went Guangdong -> HK -> Thailand -> US. Their logic was along the lines of: Thailand has fewer cases than Singapore because Thailand has minimal air conditioning compared to places like Singapore or the US.