会社の人事制度に関する説明です。The earliest I can promoted to the section head is likely five to six years later.(おそらく~だろう)The earliest I can promoted to the section head seems to be five to six years later.(~のようだ)
The earliest that I can be promoted to the position of the section head is likely to be between five to six years.
ご質問ありがとうございます。
「おそらく~だろう」の文章は①です:
"The earliest that I can be promoted to the position of the section head is"=「課長の地位に昇格できるのは早くて」
"likely to be between five to six years."=「おそらく5年から6年の間だろう。」
「~のようだ」は②になります:
"It seems that the earliest I can be promoted to the section chief position is five or six years later."=「課長に昇格できるのは早くて5年か6年後のようだ。」
ご参考に。