The nice thing about linear regression is that it (the red line) doesn't change much w/ the addition of new data. The general principles still hold.  Right now the low level winds look like this:

https://www.cpc.ncep.noaa.gov/products/analysis_monitoring/enso_update/uv850-30d.gif

And the heat content looks like this:

https://www.cpc.ncep.noaa.gov/products/analysis_monitoring/ocean/weeklyenso_clim_81-10/wkteq_xz.gif

Which are some reasons we're not, at this point, expecting a particularly significant El Nino if it were to continue (not like 2015-16 which was a top three event).