Think England are favourites for 2030 but Uruguay won and hosted the first World Cup in 1930 and 2030 will be 100 years since then.
England probably one of few countries that could cope stadium wise with a 48 team World Cup on their own. A joint bid with Scotland and Wales would be superb, not sure Northern Ireland have the stadia for such a thing, unfortunately, and 4 countries probably too much. Wales have got 3 as have Scotland. I think England could do it all themselves, I hope Wales are involved though and it's the only way Scotland are going to qualify (I joke... maybe).
Find it mad that England haven't held it since 1966 while USA will have held it twice and Mexico 3 times until England host it again (and if England don't get it in 2030, that could become more)