I myself don't think Nintendo would add characters such as Daisy to Mario Sunshine HD (heck even Luigi isn't in)...Mario Galaxy 3 could be a exception, though.
Here's the link: http://www.shacknews.com/article/97681/rumor-super-mario-galaxy-3-super-mario-sunshine-hd-headed-to-nintendo-switch
Since these are just rumours we will just have to wait. If they are not, atleast expect Daisy to appear in an upcoming Mario golf game.Read more >
Has anyone seen this yet, I think it's funny and inspiring. Some fans make a fake Nintendo leak dedicated to Daisy; the art and animation in general is amazing. Check it out when you can: https://youtu.be/4FfyXX74fGwRead more >