Years like HHN 18 and HHN 21 had great original houses and storytelling with new Icons. However, even those years had IPs. HHN 18 originally had two IPs with the unbuild AWIL, and HHN 21 had The Thing 2011. HHN can still have IPs in years with great original storytelling and Icons to tie it together.
We are entering a new decade of horrah, and that has me interested in how and if a Icon role will return through characters other than Jack. Now, if we are blessed with HHN: Year of the Bear this decade, then I and (likely) HHN fans across the country would be dancing with joy.