Charles Ro just emailed a notice that a number of new releases are "just in." These include MTH F3s: New Jersey Central, New York Central, Seaboard, Santa Fe (both A units, Rusty--#18 and #19C although the unpowered A unit is already sold out), and Union Pacific. So the "5 or Less (sic; it should be 'fewer' unless they really mean missing parts)" bulletins probably refer to what is left in stock once MTH has shipped to its dealers.
The Ro website, however, has a notice that Santa Fe #18 is back-ordered and not available until May 20. That may mean that the emailed notice is a bit optimistic and/or the website has not been fully updated. Since the Union Pacific locomotives are still listed as back-ordered on the website, it is likely that it needs an update.
