The announcement will almost certainly be of a works engine collaboration with the great British team McLaren starting in 2015, and potential customer engine deals for the radical new turbo V6 regulations.
A Honda spokesperson would not comment.
Interestingly, however, Tokyo-born former Honda driver Takuma Sato has ruled out a return to formula one in the near future, insisting he is committed to Indycar.
"Formula one isn't the only racing," the 36-year-old told NBC.
"My first focus is to win races here, win the (Indy) 500 and win the championship."
German-language Speed Week, however, said it could be a totally different story for the newly-departed and formerly Toyota-backed Japanese Kamui Kobayashi.