2008's The Incredible Hulk has a rather..... interesting history in the Marvel Cinematic Universe. Ever since Edward Norton was fired from the role of Bruce Banner/Hulk and replaced with Mark Ruffalo in The Avengers, The Incredible Hulk has basically become the blacksheep of the MCU. It's still canon, we still get references here and there, and even William Hurt reprised his role as Thunderbolt Ross in some recent films. So, the film isn't exactly being ignored, but it's not really that important to the story of the MCU at the moment. And with Universal still owning the distribution rights to the Hulk's solo movies, the likelihood of us getting The Incredible Hulk 2 is kinda low. Hell, the movie won't be able to appear on Disney+ because Disney don't own the rights to market and release the film. So, for those expecting to see it on Disney+, you might have to get it on Blu-Ray instead.
Anyways, getting back on topic. Like I said, The Incredible Hulk is still being referenced to in the MCU, and somebody on Reddit just revealed a little bit of a continuity connection between The Incredible Hulk and Thor: Ragnarok. If you remember the fight scene between Hulk and Abomination, then you also remember the scene where Abomination is digging his exposed elbow bone into Hulk's chest, causing him to bleed and get seriously injured. Well, in Thor: Ragnarok, the special effects team made a nice little reference to that fight in the form of a scar. If you look closely at Hulk's chest, you'll see the scar from where Abomination stabbed him in his solo movie. It's not that noticeable at first glance, but if you zoom in at the right spot, you'll be able to see a round scar on his chest. You can check out the article below to see it for yourself.
But, yeah, it's cool to see that the creative team behind Thor: Ragnarok decided to add this little reference in there. A lot of the time, some fans forget that The Incredible Hulk is even canon to the MCU, or forget that it even exist. Hell, some people actually choose to ignore the film on purpose, even though they know it's canon. They just pretend that the film isn't canon and have elected to ignore it, mostly due to the casting change with Hulk. So, it's cool to see that Marvel is letting the fans know that they haven't forgot about The Incredible Hulk and continue to acknowledge its existence in the MCU.
https://comicbook.com/marvel/amp/2019/10/26/mark-ruffalos-incredible-hulk-thor-ragnarok-edward-norton/?__twitter_impression=true