The NOAA Climate Prediction Center does not monitor or forecast the particular El Nino type (e.g., Warm Pool/Central Pacific versus Cold Tongue/Eastern Pacific). I cannot speak for CPC, but I believe there are several reasons why. First, there are no universally accepted definitions for the two types of El Nino. Second, the type of El Nino is closely related to the strength (as discussed in this blog post), with weaker events typically resembling the Warm Pool/Central Pacific type and stronger events resembling the Cold Tongue/Eastern Pacific type. So, CPC's new ENSO Strength outlook provides some indication of El Nino type. The 70-75% chance that the Nino-3.4 index will exceed 1.5C provides a hint that the Cold Tongue/Eastern Pacific type may be favored.

With all that said, I recognize that there is still El Nino pattern variability even when we control for strength (e.g., the 2015/16 event was centered more toward the central Pacific than 1997/98 even though 2015/16 was one of the strongest events). This event has been warmest in the eastern Pacific, with the warmth gradually expanding westward, so that's another reason that this event may be centered farther east than most other recent El Nino events.