Disclaimer: I’m nearly level 60 (trying to finish level 59 lessons at the moment)
I’ll confess: I don’t read Japanese news so I really don’t know. I used to read NHK news easy when I was in level 20s but it got boring because I’m not particularly interested in what’s happening on Japan (and even in my own country, I just don’t care much…)
Yes, I can. Not as smooth as how I read texts in English, but still far better than when I was at teens level. Well, I still need a dictionary specially on words I don’t encounter much. I like reading fantasy or supernatural ones, so I tend to really search a lot of words because the only core vocabulary I know a lot of is about daily normal lives context (about high school, classroom setting, simple salary man life, household chores stuff like that.)
I don’t know, since I don’t really plan to go to Japan. But my guess is no, I can’t read all signages with confidence. But guessing from the signages I see in anime, I can probably read about 60% of them (rough estimate)
I can’t really tell since I’m the type of person who can memorize more of the vocab meaning and reading than memorizing kanji meaning and reading. I’d rather hammer a kanji reading from vocabularies, and not vice versa. So after I finish WK, I’ll switch on SRS focusing on vocabularies because I find it much efficient 
Good luck on your journey! The early levels are the time where you still figure out how to balance WK, other SRS apps for Japanese learning, or if you need to jump start immersion.