According to Japanese official Fan club,they will have after party on 17 Feb. Only Howie and Nick will be host(A.J and Brian will not)

After Show Private Party Hosted by Nick--Howie

17 Feb 20--00 - 23:00@Club alife
500 FC members only.
--15,000(Free drink & light meal)

It's just after party. so they will not perform. and no Meet & Greet.

And here is their schedule in Japan.
14 Feb - Mezamashi TV (@ Fuji TV am7:00-)
15 Feb - Music Station (@TV Asahi pm8:00-)
16 Feb - Live @ Tokyo Dome
17 Feb - Live @ Tokyo Dome


SOURCE: SC 2007 ROSE BOWL CHAMPS sur Return of Backstreet via love is...bsb