I think you can use a switch for the different projects in the template, see for example this Hungarian page:<div><br></div><div><a href="http://meta.wikimedia.org/wiki/MediaWiki:Centralnotice-2008_nometer_2-donate-text/hu?action=edit">http://meta.wikimedia.org/wiki/MediaWiki:Centralnotice-2008_nometer_2-donate-text/hu?action=edit</a></div>
<div><br></div><div>and the switch function inside it:</div><div><span class="Apple-style-span" style="font-family: -webkit-monospace; white-space: pre-wrap; ">{{#switch:{{lc:{{SITENAME}}}} |wikiszótár=Wikiszótárra |wikipédia=Wikipédiára |wikihírek=Wikihírekre |wikidézet=Wikidézetekre|wikikönyvek=Wikikönyvekre |wikiforrás=Wikiforrásra |Wikimédiára}}</span></div>
<div><span class="Apple-style-span" style="font-family: -webkit-monospace; white-space: pre-wrap;"><br></span></div><div><span class="Apple-style-span" style="font-family: -webkit-monospace; white-space: pre-wrap;">On the left side of the =-signs is the name of the project in your language with small initial letters, while on the right side is the text that should be shown in the given project. (This might seem complicated, but it isn't that difficult; setting up separate notices for the different languages and then maintaining them when the banner changes might be much more complicated IMHO).</span></div>
<div><span class="Apple-style-span" style="font-family: -webkit-monospace; white-space: pre-wrap;"><br></span></div><div><span class="Apple-style-span" style="font-family: -webkit-monospace; white-space: pre-wrap;">Best,</span></div>
<div><span class="Apple-style-span" style="font-family: -webkit-monospace; white-space: pre-wrap;">Regards<br></span><br><div class="gmail_quote">On Tue, Nov 11, 2008 at 6:59 PM, Luiz Augusto <span dir="ltr"><<a href="mailto:lugusto@gmail.com">lugusto@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><br><div class="gmail_quote"><div class="Ih2E3d">On Tue, Nov 11, 2008 at 7:46 AM, Petr Kadlec <span dir="ltr"><<a href="mailto:petr.kadlec@gmail.com" target="_blank">petr.kadlec@gmail.com</a>></span> wrote:<br>
<div> </div></div><div class="Ih2E3d"><blockquote class="gmail_quote" style="border-left:1px solid rgb(204, 204, 204);margin:0pt 0pt 0pt 0.8ex;padding-left:1ex">
In Czech (cs), you need to take into account the grammatical gender<br>
and number of the names. While "Wikipedie" (Wikipedia) is feminine<br>
singular, "Wikislovník" (Wiktionary) is masculine singular, Wikinews<br>
is plural, etc. But, since all projects share the same central notice<br>
template, and differ only in the language, it is not that easy, I am<br>
afraid.<br>
</blockquote></div></div><br>Same issue with the Portuguese language. "Wikipedia", "Wikinotícias" (Wikinews) and "Wikiversidade" (Wikiversity) are feminine singular. "Wikcionário" (Wiktionary), "Wikilivros" (Wikibooks), "Wikiquote", "Wikisource" and "Wikimedia Commons" masculine singular.<br>
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