Here at least is a clear commitment to end the 15 year rule on overseas voters in the Conservative Party Manifesto 2015:
“We will complete the electoral register, by working to include more of the five million Britons who live abroad. We will introduce votes for life, scrapping the rule that bars British citizens who have lived abroad for more than 15 years from voting”
The Commitment paragraph ” We will protect our electoral system, to safeguard our democracy” on page 49 of the Conservative Manifesto 2015 below, refers:
Votes for Expat Brits blog 
Pingback: Harry Shindler: If EU Referendum is not right time to remove 15-year-rule why not? | Votes for Expat Brits blog
Pingback: Harry Shindler: If EU Referendum not right time to remove 15-year-rule why not? | Votes for Expat Brits blog
look forward to the ” new look straight talking” Westminster establishment after the G election UK ? Its only taken in name notably Harry Schindler years of court actions with the pathetic Westminster Gov. to promise to encourage overseas UK citizens to convince the Elecroral College that there is infact a need to change the hidden ammendment page 141 (in the Elections Political Parties Referendum Act 2000) reducing the Rep of the Peoples 1989 Act period 20 years to 15 years ONE LINE thats it – can one expect an antique Gov. process to deliver common sence democratic ACTION !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I wait with baited breath