I have two questions, first: would the Tiger UHT/KHT receive the 30mm cannon proposed by @NER055 and @Armen_Lozone Lozone Tiger KHT: Germany's Best (see RMK-30) ? Second: I really like the style of the Strv 122 because they are big, will Sweden receive a helicopter with missile fire and forget?
I love Nordic helicopter
The standard answer to any “will this come to the game” question is: we don’t know, because the devs decide this stuff and no one in the WT community practices scrying or telepathy.
A bit more seriously, the answer to the first question is “maybe” and the answer to the second question is “a big maybe”.
The RMK-30 exists and has been tested, and there were plans to integrate it onto the Tiger, so compared to some other stuff that exists in the game, this wouldn’t be a too unhistorical addition. This thread also discusses the issue: Tiger UHT's RMK30 chin turret (though it goes off topic a bit at the end).
As for Swedish FnF… the Nordic countries were never too keen into attack helicopters. Currently, Denmark and Norway operate MH-60Rs, which technically could carry Hellfires (even though the two countries don’t seem to have brought any), which technically could include AGM-114Ls (even though Gaijin seems to insists that MMW is too OP for the game right now). Alternatively, they could just give the AHS AGM-114Ls and call it a day.