I wish you all the best in the future

[TheUnitedStatesOfEurope]

Hello everyone, 皆様、こんにちは。☺️

I would like to say the following, but I don't know if my translation is culturally / idomatically and gramatically correct.
There are slight deviations between both translations. The context is business-like (although cordial) and the recipients are customers.

In order to say "I wish you all the best in the future.", would "ご行員を祈ります" or "上手くいきますように" be more appropriate?
Or would neither be appropriate? Instead does an equivalent of "I wish you all the best in the future." exists in Japanese in this context?
If this should be avoided in Japanese in a business email, how could I formulate my best / sincerest / warmest wishes then, with for example a simple "よろしくお願いします。" instead? 🤔

May some natives let me know if there may be another version possible?

Context (English version):
『Dear all,
I hope that you are doing well.

I would like to inform you that I am leaving XXX Co. Ltd. to pursue new career challenges.

At XXX Co. Ltd., I have spent 5 thrilling years during which I felt so grateful to accompany you in all aspects of your commercial and technical projects.
Thank you so much for your continued and kind support.

In the meantime, I will remain there to support you further.

I would like to sincerely thank you for the constructive cooperation as well as for the nice memories.
And who knows, we may stumble across each other during a congress or an exhibition. The world of semi-conductors is a small world. 😊

I wish you all the best for the future.
With warmest regards,』
Context (Japanese Version / My try):
『皆様、

いつもお世話になっております。
私はXXX株式会社を離れることを発表します。

XXX株式会社で5素晴らしい年を過ごし、この時期に、私は、技術的、商業的な貴社のプロジェクトに関するあらゆるの取り組みに非常に感謝しています。
引き続き、どうぞ宜しくお願い致します。

お礼と共に、その間、御社のプロジェクト支援していくことをご報告申し上げます。

最後の5年の間に、貴重なお時間をさいて頂き、有り難うございました ~ 大変幸せを感じた時間でした。

ご協力と素敵な思い出を何卒よろしくお願い申し上げます。

そして誰が知っている、また会いましょう (半導体の世界は、実に狭い世界なのです)。

ご行員を祈ります。』

Thank you so much | どうもありがとうございます m(_ _)m
🇪🇺 The USE | ヨーロッパ合衆国 🇪🇺

 

[gengo]

A non-literal translation works best here: 今後ともよろしくお願いいたします。

 

[TheUnitedStatesOfEurope]

So you would deem "ご行員を祈ります" or "上手くいきますように" too literal here?

Moreover, I already used: "引き続き、どうぞ宜しくお願い致します。" in this text.

I was afraid that a similar expression, such as "今後ともよろしくお願いいたします。" may perhaps sound redundant.

Thank you so much again.
🇪🇺 The USE | ヨーロッパ合衆国 🇪🇺

 

[gengo]

I didn't really look at the rest of your text, since forum rules allow only one question per thread.

 

[SoLaTiDoberman]

ご行員を祈ります is merely a typo for ご好運を祈ります。

行員（こういん）kouin /employees
幸運（こううん）kouun /good luck

 

[gengo]

ご行員を祈ります is merely a typo for ご好運を祈ります。

I agree, but that doesn't sound very natural as a closing to this letter. At least I've never seen a native speaker use it in that way.

 

[SoLaTiDoberman]

I've often encountered the expression such as 皆さまの御多幸と御健勝を祈念申し上げます。
Because this letter is basically a サヨナラ letter.
So 今後ともよろしくお願いいたします may be different for this context.

However, the speaker is going to stay that company for a while, and he/she is expecting to see them in the future events/meetings, so 今後ともよろしくお願いいたします maybe also work here.