Use these new TLD's in a smart way like emd domain, look at these big media news websites, they all have a .com domain, but they have a .news TLD too ! (based on my recherche), Brand intent searching, users typing in Bloomberg as example and all their multiple url's (from one domain!) popping off. So when users type in Bloomberg news then it goes via redirect from bloomberg.news to bloomberg.com....
You can use that for your site too, example you are in the fitness niche and you do blogging every day and you have a com domain.
users will not only typing in google your Brand name they will type in (examples) Johndoe fitness, johndoe sport, johndoe blog, johndoe lifestyle into google and guess what? Grabb more traffic zo your .com domain when you buy a few new TLD's too like
fitness,coach, sport, life, lifestyle, blog whatsoever and whammm! Redirect them via 301 to your .com domain !
When you are in the marketing niche with a blog, then use these TLD's: marketing, coach, consulting, blog, and more of these TLD who are relevant to marketing. You think these methods not matter in google's eyes, blablabla...but one moment, think about it, there is a reason why big company sites doing this! Think out of the edge and think deeper !