It would be nice if we were to bump into each other just by chance.
ーI likely won't see you in the future, but hopefully we will run into each other someday.
「この先あなたと会うことはないだろうけど、いつか偶然会えたらいいなあ」
likely won't see you で「あなたに会うことはなさそう」
in the future で「この先・将来」
to run into ... で「…に偶然会う」
ーWe probably won't see each other again, but it would be nice if we were to bump into each other just by chance.
「私たちは多分もう会うことはないだろうけど、偶然に出会えたらいいよね」
probably で「多分・おそらく」
it would be nice if ... 「もし…なら良いなあ」
to bump into ... で「…にばったり出会う」
by chance で「偶然に」
ご参考まで！
カナダ 
