/me agrees with @Zidane
While I agree the bukkit API is nice and well made, what @Zidane said is spot on. Bukkit has had it’s fair share of restrictions and problems in the past; many of which I have had the displeasure of noticing (one prominent thing was the scoreboard API not working at all for me for some reason) I feel like it’s best for us to have a fresh start with a completely new API, that won’t have the same issues as bukkit did. Besides for many people being similar to forge can be a huge plus if they want to eventually get into modding. Although if you really still wanna write bukkit plugins, you could still do that with spigot and you can use them on sponge with pore when that comes out later.