Oh, I have been waiting for a long time, ever since I read CSM codex 3.5 as a kid. But of course, like almost every kid, I started collecting loyalist marines until high school. Then... just stopped the mini hobby for some years, although kept reading and playing the videogames and always fantasizing about one day having a Slaaneshi marines army. After the pandemics I went full Craftworld eldar (the irony, lol) and started collecting and painting again. By that time the rumours of Fulgrim´s glorious come back started appearing, so I knew it was a question of time and... here we are! Almost half a decade later lol
I have been saving and preparing a lot of bits and parts for converting, and even was ready to create a scratch noise marines force... Then the last Valrak´s rumours kicked in and now I´m paralyzed again, waiting to, at least, know unit compositions and equipment options. At least we finally know it will be next year, and probably spring!