it is a particular situation, I am a non EU citizen with a non expired EEA visa issued in the UK where lived with my EU citizen wife for 2 years; for work reasons we moved to the middle east and we are traveling to UK for tourism soon, does the EEA not expired visa still valid even when I've been living for 3 years in the middle east? . Travelling to the UK with the whole EU citizens family, I'm the only non EU citizen. Agin the UK EEA visa hasn't expired still has 2 more years to expire.
If you are travelling with your EU citizen spouse and with a valid EEA residence card you do not need a visa to enter the UK as your spouse would be exercising treaty rights: https://www.gov.uk/government/publications/entering-the-uk-as-the-holder-of-an-article-10-residence-card/entering-the-uk-as-the-holder-of-an-article-10-residence-card