A few more people will be joining us, so please wait for a few more minutes.
It is time, but since not everyone who is supposed to be here have joined us, please wait a little bit longer.
ご質問ありがとうございます。
① "A few more people will be joining us,"＝「あと何人か参加します」
"so please wait for a few more minutes."＝「なのであと何分かお待ちください。」
② "It is time,"＝「時間です」
"but since not everyone who is supposed to be here have joined us,"＝「ただ、まだ出席される方たち全員が参加されていないので、」
"please wait a little bit longer."＝「もう少しお待ちください。」
ご参考に。
アメリカ合衆国 
