MBS rates have not been affected like treasury rates.

We already have NEGATIVE interest rates in multiple countries, and the US treasury rates just hit new historic lows courtesy of coronavirus. 

So if in the last 20 years, the 10 year treasury rate dropped by 100bps in any one year period, then that's what I would use for my conservative projection for it increasing in the next year.So, if we look at the 20 year yield for the 10 year we see some pretty big swings within a single year period.If you're planning for the apocalypse then you may want to bake in a 2% increase.

However, more than the effect of the Fed’s actions, trends in the 10-year Treasury suggest rates may have more room to fall.

Combined with the anxiety related to the COVID-19 we're not exactly on terafirma.This week we saw the 10 year treasury bottoming out at a historic 0.35% ( it was 1.8% at the beginning of the year, an 80% decline in yield/increase in price).

As a 63-year-old with a BA in Economics and lots of treasury experience, I have concluded that the Economic principles I was taught in college and experienced in my treasury career often no longer apply.  

Not the interest rate itself, but the fact that they will be buying MBS will impact real estate.The mortgage rate shot up last week diverging from a 10-year treasury because not many banks wanted to buy MBS.Since Fed will be buying MBS, the mortgage rate will head lower.

I have heard the US treasury is dropping its interest rates due to corona virus.

The money did not go into Corona-Virus stimulus (perhaps a small portion as of now), but rather into a REPO market to continue to purchase its own treasuries in fear of a "liquidation crisis."

In addition, mortgage rates are most closely aligned with the 10 year treasury, not the Fed funds rate.